According to the US Department of education, full-time graduate students receive an average salary of 13,900. The dean of graduate studies at a large state university in Texas claims that his graduate students earn more than this. He surveys 46 randomly selected students and finds their average salary is 13,445 with a standard deviation of 1800. with alpha =0.10 is the deans claim correct? A. State the correct hypotheses: a. Ho: mu= 13,900 Ha: mu does not equal to 13,900 b. Ho: mu=13,900 Ha: mu is greater than 13,900 c. Ho: mu= 13,900 Ha: mu is less than 13,900 d. Ho: mu is less than 13,900 Ha: mu is greater than 13,900 b. select the correct sampling distribution: a. students t with 46 d.f b. standard normal with 45 d.f c. studnets t with 45 d.f d. standard normal c. select the correct p-value: a. .0864 b. .4692 c. .0436 d. .9564 d. select the correct decision and conclusion: a. Fail to reject HO, we have sufficient evidence to conclude the average salary of the graduate students is greater than 13,900. b. Reject HO, we do not have sufficient evidence to conclude the average salary of the graduate students is greater than 13,900. c. Reject HO, we have sufficient evidence to conclude the average salary of the graduate students is greater than 13,900. d. Fail to reject HO, we do not have sufficient evidence to conclude the average salary of the graduate students is greater than 13,900 THANK YOU
According to the US Department of education, full-time graduate students receive an average salary of 13,900. The dean of graduate studies at a large state university in Texas claims that his graduate students earn more than this. He surveys 46 randomly selected students and finds their average salary is 13,445 with a standard deviation of 1800. with alpha =0.10 is the deans claim correct?
A. State the correct hypotheses:
a. Ho: mu= 13,900 Ha: mu does not equal to 13,900
b. Ho: mu=13,900 Ha: mu is greater than 13,900
c. Ho: mu= 13,900 Ha: mu is less than 13,900
d. Ho: mu is less than 13,900 Ha: mu is greater than 13,900
b. select the correct sampling distribution:
a. students t with 46 d.f
b. standard normal with 45 d.f
c. studnets t with 45 d.f
d. standard normal
c. select the correct p-value:
a. .0864
b. .4692
c. .0436
d. .9564
d. select the correct decision and conclusion:
a. Fail to reject HO, we have sufficient evidence to conclude the average salary of the graduate students is greater than 13,900.
b. Reject HO, we do not have sufficient evidence to conclude the average salary of the graduate students is greater than 13,900.
c. Reject HO, we have sufficient evidence to conclude the average salary of the graduate students is greater than 13,900.
d. Fail to reject HO, we do not have sufficient evidence to conclude the average salary of the graduate students is greater than 13,900
THANK YOU
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