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Required Questions 1. With a of 350 and ox =75, N=25, what is the probability of selecting a sample mean between 310 and 360?
Required Questions 1. With a of 350 and ox =75, N=25, what is the probability of selecting a sample mean between 310 and 360? Calculate probability and draw graph. 2. You measure the happiness of a sample of medical students thinking the medical school may lower their happiness compared to a typical graduate student (typical graduate student =45, x=10.12). You obtain these scores: 44 55 39 20 24 38 36 24 32 a) Is this a one-tailed or two-tailed test? Explain your answer. b) What are the statistical hypotheses, H. and Ha? (use symbols as you learned in text). c) Compute Zobt d) With =.05, what is Zcrit? e) What should you conclude about happiness for the medical students compared to other students? Justify and explain your answer.
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