Problem B: Suppose that Cities A, B and C have the following observed number of COVID19 cases. Determine if the COVID19 cases for these barangays are homogeneous. City A COVID19 cases 400 B 450 C 500
Q: (b) Find the critical value(s). Round the answer(s) to three decimal places. If there is more than…
A: given data n = 16x¯ =8.1 hourss = 1.2 hoursα = 0.10claim : μ ≠ 7.1 hoursnormal distributioncritical…
Q: You wish to test the following claim (HaHa) at a significance level of α=0.10α=0.10.…
A: Given Hypothesis: Ho:μ=89.9 Ha:μ≠89.9 You obtain a sample of size n=14, mean M=88.5 and a…
Q: The relative effectiveness of two different sales techniques was tested on 12 volunteer housewives.…
A: The relative effectiveness of two different sales technique was tested on 12 volunteer housewives.…
Q: Q: When a recent Eurobarometer Survey asked Subjects in each European Union Country whether they…
A: Given information: p^Denmark=0.52, nDenmark=1008p^Lithuania=0.14, nLithuania=1002
Q: ) True or False. a.) Based on the central limit theorem, the distribution of sample means will be…
A: Since we know that Central limit theorem is defined as the shape of the distribution of sample means…
Q: ntinuously referring to scientific data and established theories, whether biological sciences, hard…
A: Regression models: There is a dependent variable and a independent variable in simple linear…
Q: QUESTION 20 You conduct post-hoc analyses because your ANOVA is significant. Your posthoc analyses…
A: Question 20: The Post-hoc analyses is given.
Q: Cigarette Smoking A researcher found that a cigarette smoker smokes or average 31 cigarettes a day.…
A: Given information Population mean µ = 31 Sample size (n) = 10 Mean x̅ = 28 Standard deviation (s) =…
Q: b. Determine the critical value(s) for the hypothesis test. c. Conclude whether to reject the null…
A:
Q: QUESTION 7 You are interested in seeing whether emotions impact decision making. You have three…
A: Anova is used to measure the mean significant between the three or more groups. It measure the mean…
Q: The Transport Network Vehicle Service (TNVS) drivers have an average booking of 22 rides a day with…
A: Here we have given the information, using this information we have to find the standard error of the…
Q: b) A meat packaging department of a supermarket chain wished to evaluate the efficiency of their new…
A: Given: Sample mean (x)=7.20 Sample size (n) = 60 Standard deviation (σ) =1.90
Q: For a specific confidence interval, the larger the sample size, the smaller the margin of error will…
A: We have given that, For a specific confidence interval, the larger sample size, the smaller the…
Q: For items 10-15: A study was conducted to investigate the interactions between California sheephead,…
A: Given information, The path diagram of the study investigate the interaction between California…
Q: to determine what effect the salespeople had on purchases, a department store polled 700 shoppers as…
A: From the provided information, Happy Not happy Total Purchase 130 112 242 No purchase 135…
Q: QUESTION 9 You have just completed an experiment in which different subjects were randomly assigned…
A: Given Information: In an experiment, different subjects were assigned randomly to an experimental…
Q: A service station owner believes that equal numbers of customers prefer to buy gasoline on every day…
A: It is needed to test the whether the number of customers who prefers to buy gasoline on each day of…
Q: Which scatterplot has a correlation coefficient closer to 1? Graph 1 ✪ Graph 1 Graph 2
A: Solution-: We want to find which of the given scatter plot has a correlation coefficient closer to…
Q: Test the claim that the mean GPA of night students is smaller than 3.1 at the 0.01 significance…
A: Assume that μ is the population mean GPA of night students.
Q: a certain barangay. LGU distributes "ayuda" benefits to each family with a mean of 3,200 pesos per…
A: Given that. X~N( μ , ?) μ=3200 , ?=850 , n=32 Z-score =( x - μ )/?
Q: se ”margin.table” to get the Titanic marginal table for factors 1 (class of accomodations) and 4…
A: Given, Observed frequency O Table : By applying the chi-square of independence,
Q: NY SE Stock Prices An investing club randomly selects 15 consideration, and the prices per share are…
A:
Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c=0.95,…
A:
Q: Anyway you could type it out? I am having trouble reading some of the things you wrote
A: From given data we have : n=300 P=0.20 x=57 Sample proportion p^=xn=57300=0.19
Q: Given the scatter plot below, describe the following. Horsepower vs. MPG mpg 50- 40- 30- 20- 10- 0-…
A:
Q: 12. The following data are from a repeated-measures study comparing two treatment conditions. a. Use…
A: The following data are from repeated measures, comparing two treatment conditions. a.Repeated ANOVA…
Q: The breaking strengths of cables produced by a certain manufacturer have historically had a mean of…
A: From the provided information, Population standard deviation (σ) = 65 Sample mean (x̄) = 1762 Sample…
Q: Under the logic of the hypothesis test of ANOVA, the F-statistic is made up of the MS Between…
A: If the variance observed in ANOVA relationship does not have enough of an MS between effect. The…
Q: What is the relationship between the F-ratio for a repeated-measures ANOVA and the F-ratio for an…
A: The relationship between the F-ratio for a repeated-measures ANOVA and the F-ratio for an…
Q: 23.9 4.4 22.2 6.9 75.1 13.8 69.7 21.7 4.0 12.6 7.5 ence 23.6 he icon to view the critical values of…
A: Given X=1.2 Enter the given value into Excel sheet
Q: c. Develop the estimated regression equation that could be used to predict the price given the…
A: The data shows the price and weight for 18 SA helmets.
Q: QUESTION 10 You are interested in seeing whether emotions impact decision making. You have three…
A: Given that Number of treatment = k = 3 Number of observation = n = 5*3 = 15 Sum of square within =…
Q: Click here to view the critical values of the Pearson correlation coefficient, r. The regression…
A: From the above data X is the Magnitude Y is Earthquake
Q: hat is the random variable for this survey? . Whether or not a child is a customer . The number of…
A:
Q: Find the value for each t Prompt n = 18 for the 99% confidence interval for the mean. Answer Choose…
A: It is given that the different sample size and confidence interval in each case.
Q: For items 1 to 6: It is beneficial to be able to estimate the weight of a tree based on measurem…
A: From the above output The correlation coefficient r=0.9827 There is strong positive correlation…
Q: Creating the app, they collected sample data and developed the following regression equation: where…
A: Given y = - 8.825 + 20.486x_{1} + 0.56x_{2} + 1.02x_{3}
Q: 12. When the alternative hypothesis is that the parameter is at least 100, test is done. e.g.H₁:…
A: Given Hypothesis Population mean μ ≥100
Q: Digitalis is a technology company that makes high-end computer processors. Their newest processor,…
A:
Q: 4. Management at a local grocery store is gathering data about the preference of customers for…
A: given data claim : p > 0.70n = 255x = 184α = 0.01
Q: QUESTION 12 You are interested in seeing whether emotions impact decision making. You have three…
A: We have given that p-value = 0.78 Answer:- • No, the findings is not statistically significant…
Q: recent study of 35 Grade5 students, the mean number ours per week that they played video games was…
A: We have given that, Mean = 16.6, sample size (n) = 35 and population standard deviation = 2.8
Q: the normal approximation for the binomial distribution (without the continuity correction), what is…
A: Given that Sample size n =373 Favorable cases x =131 Sample proportion p^=x/n =131/373 =0.3512
Q: Which of the following is the most appropriate test to answer his objective? O A. Chi-Square test of…
A: It is given that the statement about to the hypothesis testing. Here, need to find out the correct…
Q: A company has a policy of retiring company cars; this policy looks at number of miles driven,…
A: Solution-: Let, X=The number of month service for the fleet of cars Given: μ=43,σ=5 We want to find…
Q: A random sample of 21 wolf litters in Ontario, Canada, gave an average of x1 = 4.7 wolf pups per…
A: Confidence interval are range where the true value of population lies. It provide the range for…
Q: Roughly how many times should I toss a coin for there to be a 95% chance that between 49% and 51% of…
A: It is given that there to be a 95% chance that between 49% and 51% of my coin tosses land Heads.
Q: You may need to use the appropriate technology to answer this question. A regression analysis…
A: It is given that Sample size n = 44 SSE(full) = 36 SSE(reduced) = 43 Number of parameters in full…
Q: At many golf clubs, a teaching professional provides a free 10-minute lesson to new customers. A…
A: As we know that significance level is equal to the probability of type I error, i.e. the probability…
Q: For the group of 35 movies, find the probability that the average production cost is between 68 and…
A: 4. The mean is 67, standard deviation is 19 and sample size is 35.
Step by step
Solved in 2 steps
- A market researcher for an automobile company suspects differences in preferred color between male and female buyers. Advertisements targeted to different groups should take such differences into account, if they exist. The researcher examines the most recent sales information of a particular car that comes in three colors. (You may find it useful to reference the appropriate table: chi- square table or F table) Sex of Automobile Buyer. Male Color Female Silver 477 298 Black 536 308 Red 482 348 a. Choose the competing hypotheses to determine whether color preference depends on the automobile buyer's sex. O Họ Color preference is independent of the automobile buyer's sex.: HA Color preference is dependent on the automobile buyer's sex. O Ho Color preference is dependent on the automobile buyer's sex; HA: Color preference is independent of the automobile buyer's sex. b-1. Calculate the value of the test statistic. (Round the intermediate calculations to at least 4 decimal places and…Brand Apple Samsung LG Basicmobilephone Othersmartphone Do notuse mobilephone Total Gender Male 108 30 5 2 23 0 168 Female 161 32 0 0 9 0 202 Total 269 62 5 2 32 0 370 b. Derive a relative frequency cross classification table based on row totals (i.e., gender) using the table in above. Brand Apple Samsung LG Basicmobilephone Othersmartphone Do notuse mobilephone Total Gender Male Female - TotalA variety of a broad bean plant is studied and the number of beans per plantis counted and listed below.
- Problem B: Suppose that Cities A, B and C have the following observed number of COVID19 cases. Determine if the COVID19 cases for these barangays are homogeneous. Which is the appropriate alternative hypothesis? City A COVID19 cases 400 B 450 C 500 O The proportions of COVID19 cases in the 3 cities are all equal. O At least two cities have equal proportions of COVID10 cases. O The proportions of COVID19 cases in the 3 cities are not all equal. O The COVID19 cases in the 3 cities are homogeneous.A market researcher for an automobile company suspects differences in preferred color between male and female buyers. Advertisements targeted to different groups should take such differences into account, if they exist. The researcher examines the most recent sales information of a particular car that comes in three colors. (You may find it useful to reference the appropriate table: chi- square table or F table) Sex of Automobile Buyer. Color Male Female Silver 477 298 Black 536 308 Red 482 348An average of 40 customers travel between Departments A and B each day. Unfortunately, Department C is located between Departments A and B, and no customers travel between Department C and Departments A and B. What is the load-distance score of this three department layout?
- A state game commission introduces 40 deer into newly acquired state game lands. The population N of the herd can be modeled byThis is a Statistics problem. Please code in R.To receive a C grade, a student must average more than 7777 but less than or equal to 8585. If Noah received a C in the course and had five grades of 7373, 8585, 7373, 6969, and 7878 before taking the final exam, what were the possible grades for his final if there were 100100 points possible? (Assume all six grades are weighted equally and let x represent the unknown score.)
- Hydroxychloroquine is a drug sometimes used to treat malaria or rheumatoid arthritis. This drug has recently received some notoriety as a possible treatment for those suffering from Covid-19. A hydroxychloroquine tablet comes in a 200 mg strength, but hydroxychloroquine dosage may be anywhere from 200 to 1200 mg. Thus, a patient must take multiple pills. Suppose X is the number of pills taken by a randomly selected hydroxychloroquine patient. Then according to JJSDA, x has the following probability mass function, p(x), and cumulative distribution function F(x). 1 2 4 p(x) .04 .27 .35 .10 07 F(x) .04 .31 a .83 .93 1 a. If F is the cumulative distribution function of x, then what is the value of a? b. If p is the probability mass function for x, then evaluate b. c. What is the expected value of x? d. Calculate the variance of x. e. What is the variance of 0.7*x? f. The CDC 'randomly' checks the dosage of 10 hydroxychloroquine patients. What is the probability that exactly 4 of the…For unemployed persons in the United States, the average number of months ofunemployment at the end of December 2009 was approximately seven months(Bureau of Labor Statistics, January 2010). Suppose the following data are for aparticular region in upstate New York. The values in the first column show thenumber of months unemployed and the values in the second column show thecorresponding number of unemployed persons.MonthsUnemployedNumberUnemployed1 10292 16863 22694 26755 34876 46527 41458 35879 2325 10 1120Let x be a random variable indicating the number of months a person is unemployed.a. Use the data to develop an empirical discrete probability distribution for x.b. Show that your probability distribution satisfies the conditions for a validdiscrete probability distribution.c. What is the probability that a person is unemployed for two months or less?Unemployed for more than two months?d. What is the probability that a person is unemployed for more than sixmonths?Need help with this stat problem