QTM 100 Lecture 8: Lab 8
7 Jul 2016
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Lab 8 data: explore inferential results when we repeatedly sample from height_m, examine the population distribution of height_m. 0. 1029791: yes, because the data is a random sample, the observations are independent, and based on the histogram, the distribution is normal, we are testing h0: = 1. 687 versus ha: 1. 687. In the hypothesis test, we run the risk of committing a. Type i error because in reality the null hypothesis is actually true. The targeted type i error rate is 5% and the targeted confidence interval coverage is 95%. The distribution of the sample means is normal. The distribution of the t-test statistics is normal. The distribution of the p-values is uniform. 4% of samples commit error: 96% of the samples have confidence intervals that capture the true parameter value. In the confidence intervals, it shows the four samples that did not have the true parameter value.
