We would like to know if the variance of the head basketball coach\'s salary in

Question

We would like to know if the variance of the head basketball coach's salary in the population is greater than 15 millions of dollars. [The sample below shows the head basketball coach's salary for a sample of 5 schools playing NCAA Division 1 basketball. Salary data are in millions of dollars. The point estimate of the variance of the head basketball coach's salary in the population is a. .16 million dollars b. .20 million dollars c. .40 million dollars d. 45 million dollars, The appropriate null hypothesis for this problem is a. sigma = .15 b. sigma lessthanorequalto .15 c. sigma = .20 d. sigma lessthanorequalto .20 Which test statistic should we use to test our hypothesis? a. s^z b. Z score of our point estimate c. x^2 = (n-1)s^2/.1S d. x^2 = (n-1)s^2/.2 alpha e. F If a one-tailed test (upper tail) is conducted at alpha = .05, do we reject the null hypothesis? a. Yes, reject the null hypothesis b. No, do not reject the null hypothesis At the .05 level of significance, if the null hypothesis of sigma^2 lessthanorequalto .15 is not rejected, it can be concluded that the variance of the head basketball coach's salary in the population is a. significantly greater than. 15 b. not significantly greater than. 15 c. significantly greater than .20 d. not significantly greater than .20

Explanation / Answer

13)option b is correct as s2=0.203

14)option B is correct

15)option C is correct ; from CHi distribution

16) as p valuyes is greater then 0.05; we do not reject null

17)option B is correct

please reply for any doubt

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