The average height of females in the freshman class of a certain college has historically been 162.5 centimeters with a standard deviation of 6.9 centimeters. A random sample of 50 females in the present freshman class has an average height of 165.2 centimeters. Determine the Z table at alpha=0.05 if we want to know if the females have a significant increase in height in two decimal place. Blank 1 Determine the Z calculated in two decimal places. Blank 2 Is there a significant increase in their height? yes or no Blank 3 "lank 1 Add your answer nk 2 Add your answer k 3 Add your answer

Q: Samples of five items were taken from a process every half an hour. After 50 samples have been…

A:

Q: You want to make a confidence interval for the true average price of calculators in Gainesville. A…

A:

Q: Tesco Revenue by Location between 2018 and 2022 Year Number of stores Uk & ROI Revenue (£m)…

A: Year Number of stores UK & ROI Revenue (£m) Central Europe Revenue (£m) Tesco Bank Revenue (£m)…

Q: We want to conduct a hypothesis test of the claim that the population mean time it takes drivers to…

A: Givenclaim is that the population mean time it takes drivers to react following the the application…

Q: x y y 11 1.0 1.0 10- 9 2.0 2.0 8 3.0 3.0 7- 4.0 4.0 6 K 5 5.0 5.0 4 6.0 6.0 3. 2. 7.0 7.0 1. X 8.0…

A: Non linear Relationship:  When the points (X,Y) on the graph follows a curve which is not linear…

Q: Assuming Employee (X) and Output (Y) for Robinson Malls. Some data are given as: Some data are given…

A: Given data is x y 1 6 2 8 2 7 3 9 4 8

Q: normal population had a mean of 70 and a standard deviation of 12. You select a random sample of 9.…

A: given data normal distributionμ = 70σ = 12n = 9 P(x¯<66) = ?

Q: Choose one statistic from the construction choices and one statistic from the receptionist choices…

A: Using the given information, The five number summary (minimum, first quartile, median, third…

Q: 5. In Homework 3 we talked about flipping an NOT fair coin where P(T) = 0.54 and P(H) = 0.46; thus…

A:

Q: Exhibit 10-19 Two major automobile manufacturers have produced compact cars with the same size…

A: Hypothesis : A statement about the parameters of the probability distribution. t-Test is used when…

Q: I conduct an online study to determine whether rewards reduce procrastination. All participants are…

A: Given information: The JAMOVI output for ANOVA and Post Hoc Tests is given.

Q: Calculate the p-value for this test. v. State the conclusion of this test. Give a

A: Test statistic (z)=2.4093 Claim on alternative hypothesis two tailed test.  NOTE:- According to…

Q: A marketing firm wants to know if there is a difference in the best marketing strategy for new…

A:

Q: 5. Using the data age and wage, predict the wage when age ranges over a grid of points of size 100…

A: The data wage and age are present in defualt in R-studio. The data is created in R in the following…

Q: 2. You are allowed to play a game with the following rules. You pay $1 to flip a fair Quarter,…

A: 3 coin : One coin= 2 outcomes (H or T) H= Head  T=Tail   Possible outcomes :  2³ = 8…

Q: Assuming that a 15:3:1 demerit weighting system is used, determine the central line and control…

A:

Q: The Tippie College of Business obtained the following results on the salaries of a recent graduating…

A: Given: Finance majors: n1 = 135 X1 = 48375 s1 = 19500 Business Analytics majors: n2 = 40 X2 = 55525…

Q: In a research report, Richard H. Weindruch of the UCLA Medical School claims that mice with an…

A: Solution: Given information: n= 64 Sample size  x =38 Sample mean s=5.8 Sample standard deviation…

Q: Answer the following: 9. How many sandwiches can be made with either white, wheat, or rye bread,…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Funding for many schools comes from taxes based on assessed values of local properties. People's…

A:

Q: For a certain candy, 20% of the pieces are yellow, 5% are red, 20% are blue, 10% are green, and the…

A: given data P(yellow) = 0.20P(red) = 0.05P(blue) = 0.20P(green) = 0.10others  are brown.

Q: Eight White adults had been convicted of crimes of hate for their anti-Asian behaviors and were…

A: Here, eight adults convicted crimes hate which is following in the above table.

Q: equal to

A: Let us consider 2 variables from the data given and z-test can be computed: The 2 variables under…

Q: 10. Out of the 100 genins who participated in the Chunin Exam for the pa years, Itachi's score was…

A: It is given that the statement about to the percentile. Here, need to find out the correct…

Q: The accompanying data show the South African population versus expenditure on new construction works…

A: Given: Sample size n = 4 b = 4.4739 Formula Used: a = ∑Y-b∑Xn

Q: Plot the density curve.

A: Given X~U(4,6)

Q: A government official is in charge of allocating social programs throughout the city of Vancouver.…

A: given data n=122x=20∴pointestimate for population proportion,p^=xn=20122=0.163934now…

Q: Hedging can also be considered the act of transforming a risky portfolio/asset into a risk-free…

A: Hedging:  It means , which eliminates all risk in portfolio known as Hedging .

Q: An agribusiness performed a regression of wheat yield (bushels per acre) using observations on 29…

A: From given data we have : Se=1.19 k=4 n=29 α=1-0.95=0.05

Q: Question 15 The retirement ages of a group of 80 people is summarised in the following table.…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 3. A technology is producing plastic pieces that are cylindrical in shape. A sample of pieces is…

A: Tolerance interval is the interval for the proportion of time with the particular stated confidence…

Q: Use a normal approximation to find the probability of the indicated number of voters. In this​ case,…

A: Given n=131, p=22%

Q: After running a linear regression with 1-factor, with the market premium if alpha is positive, then…

A: Market premium is not constant, it changes according to market. General equation :  Y = Alpha +…

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 4 years,…

A: Given that  Mean = M = 4 , Standard deviation = SD = 0.7

Q: 4.6 We have five observations on x and y. They are x₁ = 3,2,1,-1,0 with corresponding y values y =…

A: Since you have posted a question with multiple sub-parts, we will solve first 3 sub-parts for you.…

Q: Heights of Volcanoes A random sample of heights (in feet) of active volcanoes in North America,…

A: Given information Population standard deviation, σ = 2385.9 feet Sample size, n = 5

Q: (a) 9 percent level of significance, two-tailed test. Critical value of z (b) 7 percent level of…

A: It is given that the hypothesis test at different significance levels. Here, need to find out the…

Q: Which scatter plot indicates a strong, positive correlation

A: Explanation: From the Scatterplot (1), the scatterplot does not show any trend. Hence, it can be…

Q: If 500 persons were sampled, determine the number of persons who are expected to share their…

A: The percentage of subscribers share their password with someone outside of their household is 55%.…

Q: Let {Xn} be a sequence of random variables such that the following limits (in the regular point-wise…

A: Given that, Xn is a sequence of random variables. limn→∞EXn=c; for some constant c. limn→∞VarXn=0…

Q: You are playing a game where you draw a card from a standard deck, and you will win $7 if you draw a…

A: Given; you draw a card from a standard deck, and if you draw a face card then you will win 7$,  you…

Q: sing Appendix C-1 or Appendix C-2 find the p-value for each test statistic. (Round your answers to 4…

A: Given that  Test statistic  z=1.71 , z= -1.65 ,z= -182

Q: Match the scientific method steps with the process of solving the following problem:    Question 1…

A: We have to match questions according to steps. There are 6 steps :

Q: Over the years, students and teachers have developed a strategies to help prepare for an upcoming…

A: The study of students is compared using three different conditions. In one condition, participants…

Q: Medical School Applications A medical college dean read that the average number of applications a…

A: Given that  Sample size n =29 Sample mean=8.7 Population standard deviation =2.6

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 11.5…

A: Let random variable X be the lifespan of items The random variable X follows Normal distribution…

Q: Question 8 Find the area of the shaded region under the standard normal distribution to the left of…

A: given data standard normal distribution μ=0σ=1P(z<-0.07)=?

Q: A binomial probability experiment is conducted with the given parameters. Compute the probability of…

A:

Q: Given the following probability distribution for the random variable x, what is the probability that…

A: x p(x) 0 a 1 0.23 2 0.08 3 0.04 4 0.32 5 0.17

Q: If Cov (WFC, WFC)=0.0064, WHAT IS THE Var (WFC) ?

A: Given that Cov (WFC, WFC)=0.0064, WHAT IS THE Var (WFC) ?