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I need solution just for part B, and question 2, please.
Part A: Roll a single die 50 times and record the results. Now use that data set to compute the mean, median, mode, variance, and standard deviation of the set.
Part B: Then Calculate the 95% confidence interval for the mean.
Question 2- What is the relationship between confidence intervals and levels of significance?
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Explanation & Answer
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Topic 4 DQ 2:
MAT 274 GCU
Part A: Roll a single die 50 times and record the results. Now use that data set to compute
the mean, median, mode, variance, and standard deviation of the set.
Part B: Then Calculate the 95% confidence interval for the mean.
Part A: Roll a single die 50 times and record the results. Now use that data set to compute the
mean, median, mode, variance, and standard deviation of the set.
The results of rolling: 1, 3, 2, 2, 5, 4, 4, 2, 5, 5, 2, 1, 4, 6, 6, 2, 2, 3, 1, 1, 2, 2, 4, 6, 6, 2, 3, 1, 1, 1,
2, 3, 1, 5, 4, 4, 3, 6, 6, 1, 1, 1, 3, 4, 1, 1, 6, 3, 6, 4.
There are 13 1’s, 10 2’s, 7 3’s, 8 4’s, 4 5’s, 8 6’s.
The mean is the arithmetic mean, the sum divided by the number of rolls (50). The sum is
13 ∙ 1 + 10 ∙ 2 + 7 ∙ 3 + 8 ∙ 4 + 4 ∙ 5 + 8 ∙ 6 = 13 + 20 + 21 + 32 + 20 + 48 =
= 34 + 40 + 80 = 154,
so th...