A teacher divides his class into groups, randomly selects 3, and asks all students from the chosen groups on how many pets they have at home. a. Simple Random Sampling b. Systematic Sampling c. Stratified Sampling d. Cluster Sampling

Q: Does this data provide convincing evidence at the a = 0.01 significance level that the mean amount…

A: Given: Sample size, n=12 Sample mean, x¯=352.9Sample sd, s=2.19

Q: 1. x = 7.7 μ = 8.1 a = 5 n = 135 2. x= 19.8 S = 4 μ= 18.3 n = 11 3. x = 12.5 S = 3 μ = 10.75 n = 18

A: As per our guidelines we are supposed to answer only 3 subpart of any questions so i am solving…

Q: the shoreline. g. 26% of the time a person will wait at least how long before the wave crashes in?…

A:

Q: Test the significance of the correlation coefficient calculated in question 2 (below) at α = 0.05.…

A: From the given information we conduct Hypothesis test for correlation.

Q: Supposing you are a researcher studying the role of factor combination on output of firms in the…

A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per…

Q: 5. (a) If r23 = 0, prove that R₁ (23) = (23) = 712 + 7³1 01-23 = (1 - 12 - 13). 07.

A:

Q: 2. The Head of the Mathematics Department announced that the mean score of Grade 11 students in the…

A: 34 students are selected randomly with mean 85 n=34 x=85Population standard deviation is 12 and…

Q: You have exams in economics and chemistry coming up and 5 hours available for studying. will spend…

A:

Q: Two machines are used for filling plastic bottles with a net volume of 16.0 ounces. The fill volume…

A:

Q: Cite five (5) research questions used in real life and formulate your null and alternative…

A: From the given information we find the solution.

Q: A researcher is conducting a study on the palliative care patients at a specific facility to…

A: Wilcoxon test is a non parametric test.

Q: We use the form 9-a + bx for the least-squares line. In some computer printouts, the least-squares…

A: From the output, the constant is 315.27 and the slope value is -32.136.

Q: A major university would like to improve its tarnished image following a large on-campus scandal.…

A: Solution:  Here we should used Matched Paired t test or dependent sample t test because data is…

Q: Solve and sketch the problem.  The length of time consumed in waiting for Angkas driver is normally…

A:

Q: The value of a for a 98% confidence interval would be ______. 1. 0.2 2. 0.02…

A:

Q: Suppo_se that the st_rength of a sp_ecific m_aterial has a no_rmal dis_tribution. An eng_ineer  has…

A: GivenMean(x)=3350standard deviation(s)=27.68sample size(n)=12confidence interval = 90%

Q: Listed below are numbers of Internet users per 100 people and numbers of scientific award winners…

A: Excel procedure to create scatter plot: Enter the data of Internet Users and Award Winners in an…

Q: he overhead reach distances of adult females are normally distributed with a mean of 202.5 cm and a…

A: Given that  The overhead reach distances of adult females are normally distributed. Mean (μ) = 202.5…

Q: Distinguish Experimental Conditions from Experimental Unit.

A: Given information: Experimental Conditions from Experimental Unit.

Q: There are dozens of personality tests available on the internet. One test, scored on a scale of O to…

A: From the provided information, Mean (µ) = 96 Standard deviation (σ) = 20

Q: Q17 Which value of the following values of r indicates the strongest correlation? 0.4 0 -0.65…

A: Correlation coefficients:- The correlation coefficients measures the direction & strength of a…

Q: Suppose that "x" years after its founding in 1974, a certain national consumers association had a…

A:

Q: wo diffe_rent types of in_jection-molding machi_nes are used to form plas_tic parts. Two  random…

A: Two random samples, each of size 200, are selected from plastic parts produced from each machine;…

Q: Kyle wants to store 625 photos on his phone. Pictures have a mean size of 220 kilobytes (KB) and a…

A:

Q: Part III. Compute the mean, variance, and standard deviation of the following word problems. Show…

A: Solution-: We have given the following are the daily wages (in hundreds) of 6 different workers…

Q: A pediatrician wants to determine the relation that may exist between a child's height and head…

A: Formula : Se =√(SSE/(n-1))

Q: Answer in 30mins PLEASE The table below shows the list of COVID-19 vaccine prizes as of January…

A: Given Information: No. of observation=7Variable under study=Price (2 doses) in PesosSample…

Q: Directions: Find the rejection region for each hypothesis test based on the information given. Ha:…

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

Q: Consider the hypothesis test Ho: ₁ = ₂ against H₁:₁₂. Suppose that sample sizes are n = 10 and n₂ =…

A:

Q: of adults in the country who do not use the Internet. Based on the result, does it appear that A…

A: We have given thatn = 5009x = 755p̂ = x/n = 755/5009 = 0.1507

Q: The table below shoes the list of COVID-19 vaccine prizes as of January 2021. 1. Compute the mean…

A: The prices and efficiency of all seven corona vaccines are provided as below. Corona Vaccine…

Q: If the coefficient of determination of a simple regression equation is 0.81, the correlation…

A: Correlation coefficient is the square root of coefficient of determination.

Q: Which among the following phrases best described the degree of relationship or association between…

A: Given: Multiple R=0.45351 R2=0.20567

Q: The round off errors when measuring the distance that a long jumper has jumped is uniformly…

A: Given a=0 b=4.8

Q: Lance level to test the reasonable claim that births occur with 4 Calc At least two days have a…

A: It is needed to test, whether the reasonable claim that whether the births occur with equal…

Q: with the point A an int ve gswood Hill. A gron- (c) The advertising company also looked at the two…

A:

Q: Specify a sample space S for each of the following random experiments.  a. The results of 3 flips of…

A: a) The number of times flipped a coin is 3 times.

Q: 4) Answer the following 10- + -10-8 10 X ts] x-intercept: y-intercept: Find y when x = 6,

A: A line is passing through two points, namely, 0,-4 and 2, 0. Then, the equation of this fitted line…

Q: For a standard normal distribution, find: P(-0.78 < z < 3.28)

A: a standard normal distribution, find: P(-0.78 &lt; z &lt; 3.28)

Q: Standard Residuals 1.979463878 0.76560249 1.510106436 1.496613187 -0.121345141 -0.422635952…

A: Standardized residuals have significant role in regression analysis.

Q: Let X be a random variable representing the number of times that you have to roll two dice until you…

A: Here, the given context follows negative binomial distribution with k = 10 and p = 118 (probability…

Q: 1. The following are the score of 12 students in Statistics quiz: 86, 94, 90, 76, 95, 72, 82, 91,…

A:

Q: 38. The average marks of Median is 44.4 and Mode is 46.6 of 80 students in a class. Find the missing…

A:

Q: chain's owners are trying to decide if they want to open up a franchise in your town. they want to…

A: *Answer:

Q: The following data represents the rate of return of the stock exchange (x) and the rate of return of…

A: Solution: As per the guidelines only first three sub parts should be answered. If the remaining…

Q: Q16 A recent study reported that a 95% confidence interval for the mean travel times to work of…

A:

Q: know the preference of Marikeños regarding vaccine brand for booster shot, the city health officer…

A: Give that, To know the preference of Marikeños regarding vaccine brand for booster shot, the city…

Q: write an analysis for the data above and what does the p value mean?

A: From the given information we find the solution.

Q: Assume that the two samples are independent simple random samples selected from normally distributed…

A:

Q: oducts online. The shipping department manager claims that the average order shipped by their…

A: