Please sir if you can't solve stepwise with explanation in each step and also given information and final answer Along with the concept and also showing excel formula (wherever needed) please skip , if yes pls solve ill definitely rate the solution and dont do handwritten.. Please dont do if you can't do full , like is guaranteed but for incomplete opposite plsss A corporation randomly selects 150 salespeople and finds that 66% who have never taken a self-improvementcourse would like such a course. The firm did a similar study 10 years ago in which 60% of a random sample of 160salespeople wanted a self-improvement course. The groups are assumed to be independent random samples. Let p,and p₂represent the true proportion of workers who would like to attend a self-improvement course in the recent study and thepast study, respectively.20. Referring to that information, if the firm wanted to test whether this proportion has changed from the previous study,which represents the relevant hypotheses for two tailed?1) Ho: P₁ - P₂ - 0 versus H₁: P₁ - P₂ 0 2)H, P₁-P₂0 versus H: P₁-P₂-03) Ho: P₁-P₂ S 0 versus H₁: P₁-P₂> 0 4) H₁: P₁-P₂ 2 0 versus H₁: P₁ - P₂ <05) Hooand H₁:a o21. Referring to that information,, if the firm wanted to test whether a greater proportion of workers would currently like toattend a self-improvement course than in the past, which represents the relevant hypotheses?1) Ho: P₁-P₂=0 versus H,: P₁ P₂ 0 2) Ho P₁-P₂0 versus H₁: P₁-P₂ = 03) H: P₁-P₂ S 0 versus H P₁-P₂ >0 4) H: P₁ - P₂20 versus H₁: P₁ P₂ <05) H₁:a =a and H₁:a o22. Referring to that information, what is the unbiased point estimate for the difference between the two populationproportions?1) 0.062)0.103) 0.154)0.125) 0.2223. Referring to that information, what is/are the critical value(s) when performing a Z test on whether populationproportions are different if a -0.05?1) ±1.6452) 11.963) 12.334) 12.0824. Referring to that information, what is the value of the test statistic to use in evaluating the alternative hypothesis thatthere is a difference in the two population proportions?1) 4.3352) 1.963) 1.0934) 0.065) 0.025. Referring to that information, the company tests to determine at the 0.05 level whether the population proportion haschanged from the previous study. Which of the following is most correct?a) Reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has changed over the intervening 10 years.b) Do not reject the null hypothesis and conclude that the proportion of employees who are interested in aself-improvement course has not changed over the intervening 10 years.c) Reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has increased over the intervening 10 years.5)-1.96d) Do not reject the null hypothesis and conclude that the proportion of employees who are interested in aself-improvement course has increased over the intervening 10 years.

As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted.20.…

A corporation randomly selects 150 salespeople and finds that 66% who have never taken a self-improvement course would like such a course. The firm did a similar study 10 years ago in which 60% of a random sample of 160 salespeople wanted a self-improvement course. The groups are assumed to be independent random samples. Let p,and p represent the true proportion of workers who would like to attend a self-improvement course in the recent study and the past study, respectively. 20. Referring to that information, if the firm wanted to test whether this proportion has changed from the previous study, which represents the relevant hypotheses for two tailed? 1) Ho: P₁ - P₂ - 0 versus H₁: P₁ P₂ 0 2) HP₁-P₂0 versus H: P₁-P₂-0 3) H: P₁-P₂ S 0 versus H₁: P₁-P₂ >0 4) H: P₁-P₂ 20 versus H₁: P₁ - P₂ <0 5) H₁:0=o and H₁:a o 21. Referring to that information,, if the firm wanted to test whether a greater proportion of workers would currently like to attend a self-improvement course than in the past, which represents the relevant hypotheses? 1) Ho: P₁-P₂-0 versus H₁: P₁ - P₂02) Ho P₁-P₂ # 0 versus H₁: P₁ - P₂ = 0 3) Ho: P₁-P₂ S 0 versus H: P₁-P₂>0 4) H: P₁ - P₂20 versus H₁: P₁ - P₂ <0 5) H₁:0=o and H₁:a o 22. Referring to that information, what is the unbiased point estimate for the difference between the two population proportions? 1) 0.06 2) 0.10 3) 0.15 4) 0.12 5) 0.22

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR