Question

SHORE ANSWER. Write the word or phrase that best completes each statement or answers the question. SCENARIO 9-9 e president of a university claimed that the entering class this year appeared to be larger than the entering class from Previous years but their mean SAT score is lower than previous years. He took a sample of 20 of this year's entering students and found that their mean SAT score is 1.501 with a standard deviation of 53. The university's record indicates that the mean SAT score for entering students from previous years is 1,520. He wants to find out if his claim is supported by the evidence at a 5% level of significance. 19) Referring to Scenario 9-9, state the null hypothesis for this study 19) -

Answer 1

Ans:

Null hypothesis:

Η :μ = 1520

(the mean SAT score for entering class this year is equal to 1520)

Alternative hypothesis:

H, :μ< 1520

(the mean SAT score for entering class this year is less than 1520)