# Question 4 (0.5 points) Consider the following hypotheses: Ho: mean = 5 H1: mean < 5...

###### Question:

Question 4 (0.5 points) Consider the following hypotheses: Ho: mean = 5 H1: mean < 5 A test is performed with a sample of size 25. The sample mean was 4.68 and the population standard deviation is 1.2. Assume that the population is approximately normal. Use the TI-84 PLUS calculator to compute the P-value. Round your answer to four decimal places (for example: 0.0138). Write only a number as your answer. Your Answer: Answer
Question 5 (0.5 points) Consider the following hypotheses: Ho: mean = 9 Hu: mean > 9 A test is performed with a sample of size 49. The sample mean was 10.5 and the population standard deviation is 14. Assume that the population is approximately normal. Use the TI-84 PLUS calculator to compute the P-value. Round your answer to four decimal places (for example: 0.0138). Write only a number as your answer. Your Answer: Answer
Question 6 (0.5 points) Consider the following hypotheses: Ho: mean = 7 Hi: mean - 7 A test is performed with a sample of size 36. The sample mean was 2.80 and the population standard deviation is 18. Assume that the population is approximately normal. Use the TI-84 PLUS calculator to compute the P-value. Round your answer to four decimal places (for example: 0.0138). Write only a number as your answer. Your Answer: Answer
Question 7 (0.5 points) Consider the following hypotheses: Ho: mean = 16 H1: mean < 16 A test is performed with a sample of size 100. The sample mean was 6.06 and the population standard deviation is 60. Assume that the population is approximately normal. Use the TI-84 PLUS calculator to compute the P-value. Round your answer to four decimal places (for example: 0.0138). Write only a number as your answer. Your Answer: Answer
Question 8 (0.5 points) Consider the following hypotheses: Ho: mean = 38 Hy: mean > 38 A test is performed with a sample of size 144. The sample mean was 49.7 and the popuation standard deviation is 84. Assume that the population is approximately normal. Use the TI-84 PLUS calculator to compute the P-value. Round your answer to four decimal places (for example: 0.0138). Write only a number as your answer. Your Answer: Answer
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Question 13 (0.75 points) Recall the previous question where the school superintendent wanted to know whether second-graders in her school district have greater math skills than the nationwide average. Based on your P-value, what is the conclusion if we test at the 0.05 level of significance? This is not enough evidence to conclude that the second-graders in her district have greater math skills. There is evidence to conclude that the second-graders in her district have greater math skills. There is evidence to conclude that the second-graders in her district do not have greater math skills. There is not enough evidence to conclude that the second-graders in her district do not have greater math skills.

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