Question HelpAssume that we want to construct a confidence interval. Do one of the following, asappropriate: (a) find the critical value ta/2, (b) find the critical value za/2, or (c) state thatneither the normal distribution nor the t distribution applies.4030-The confidence level is 95%, o is not known, and the histogram of 60 player salaries (inthousands of dollars) of football players on a team is as shown.20-10-0-4000 8000 12000 16000 20000Salary (thousands of dollars).Select the correct choice below and, if necessary, fill in the answer box to complete your choice.O A. ta/2=(Round to two decimal places as needed.)O B.Za12(Round to two decimal places as needed.)O C. Neither the normal distribution nor thet distribution applies.Frequency!!

Name: Question HelpAssume that we want to construct a confidence interval.
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: Question HelpAssume that we want to construct a confidence interval. Do one of the following, asappropriate: (a) find the critical value ta/2, (b) find the critical value za/2, or (c) state thatneither the normal distribution nor the t distribution

Given: The level of confidence is 95%, which implies: The level of significance(α)=1-0.95 =0.05 The two tailed significance level is: α2=0.052 =0.025 Let n denote the number of football players on a team (n=60). In this question, t test will be used as the population standard deviation is unknown. Hence, the correct option is A.The degrees of freedom(df) in t test is given by: df=n-1 =60-1 =59 From the t table, the critical value (tα2) at 59 degrees of freedom and at 0.025 level of significance is 2.00. Hence, the correct choice is: A. tα2=2.00