After a certain task, subjects' heart rates increase We want to estimate the average heart rate in the population after the task We take a sample of 25 observations and find that the average heart rate is 68 beats per minute and the unbiased estimate of the population standard deviation is 10 What is the interval such that, if we did the same experiment 100 times, we expect the population mean to fall within it 95 times If you tested the hypothesis that the average heart rate in the population is 80 against the hypothesis that it is not equal to 80, and you could tolerate a 5 Type I error rate, what would you conclude

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Question: After a certain task, subjects' heart rates increase.We want to estimate the average heart rate in the population after the task. We take a sample

After a certain task, subjects' heart rates increase.We want to estimate the average heart rate in the population after the task. We take a sample of 25 observations and find that the average heart rate is 68 beats per minute and the unbiased estimate of the population standard deviation is 10.

What is the interval such that, if we did the same experiment 100 times, we expect the population mean to fall within it 95 times?
If you tested the hypothesis that the average heart rate in the population is 80 against the hypothesis that it is not equal to 80, and you could tolerate a 5% Type I error rate, what would you conclude?

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