Question

Assume a normal distribution and use a hypothesis test to test the given claim According to city reports, it was found that the mean age of the prison population in the city was 26 years. He obtains a random samplo of 25 prisoners and finds a mean age of 24.4 years and a standard 20. years. Marc wants to test the claim that the mean age of the prison population in his city is less than 26 deviation of 9.2 years. At a significance level of 0.05, what should his conclusion be? Note: The p-value 0.1966. a) Do not reject the null hypothesis. There is not sufficient evidence that the mean age is less than 26 years b) Reject the null hypothesis. The evidence suggests that the mean age is less than 26 years. c) There is not enough information to perfoxm the test d) Do not reject the null hypothesis. There is not sufficient evidence that the mean age is less than 24.4 years e) Reject the null hypothesis. There is sufficient evidence that the mean age is less than 24.4 years. State your conclusion to the hypothesis test 21. A certain academic program dlaims that their students graduate in less than 4 years on average. A random sample of 50 students is taken and the mean and standard deviation are found. The test statistic is calculated to be-1.69. Using a 5% significance level, the condusion would be: a) there is sufficient sample evidence for the program's claim to be considered correct b) there is insufficient sample evidence for the program's claim to be considered correct. c) there is insufficient sample evidence for the program's claim to be considered incorrect. d) there is sufficient sample evidence for the program's dlaim to be considered incorrect

Answer 1