Hypothesis Test Consider the information above and in question 1. It is conjectured that the mean number of people attending all 2017 Veterans Day celebrations is 145, and of interest is to test this conjecture versus the alternative that the mean number of people attending all 2017 Veterans Day celebrations is different from 145 people To test the hypothesis, a simple random sample of 41 Veterans Day celebrations was selected and the number of people attending each was recorded. The mean number of people attending for this sample of 41 celebrations was 157, with a standard deviation of 23 people. The distribution of the data was bimodal. If appropriate, use this information to test the hypotheses stated in question 3 at the a = .05 level of significance. Now suppose of interest is to estimate the mean number of children attending all 2017 Veterans Day celebrations. For this problem only, assume that the standard deviation of the number of children attending all 2017 Veterans Day celebrations is 21. What is the minimum number of 2017 Veterans Day celebrations that would need to be selected for the sample to allow the calculation of a 98% confidence interval with margin of error no larger than 8. a) 37.28 b) 37 c) 18.03 d) 38 e) 18 f) 19
Hypothesis Test
Consider the information above and in question 1. It is conjectured that the mean number of people attending all 2017 Veterans Day celebrations is 145, and of interest is to test this conjecture versus the alternative that the mean number of people attending all 2017 Veterans Day celebrations is different from 145 people
To test the hypothesis, a simple random sample of 41 Veterans Day celebrations was selected and the number of people attending each was recorded. The mean number of people attending for this sample of 41 celebrations was 157, with a standard deviation of 23 people. The distribution of the data was bimodal. If appropriate, use this information to test the hypotheses stated in question 3 at the a = .05 level of significance.
Now suppose of interest is to estimate the mean number of children attending all 2017 Veterans Day celebrations. For this problem only, assume that the standard deviation of the number of children attending all 2017 Veterans Day celebrations is 21. What is the minimum number of 2017 Veterans Day celebrations that would need to be selected for the sample to allow the calculation of a 98% confidence interval with margin of error no larger than 8.
a) 37.28
b) 37
c) 18.03
d) 38
e) 18
f) 19
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