a. Set the slider for level of confidence to 68%. Click sample! to construct one 68% confidence

a. Set the slider for level of confidence to 68%. Click €œsample!€ to construct one 68% confidence interval. Note the upper and lower confidence limits and calculate the width of the interval. Using €œanimate!€ construct many samples and note the percent of intervals containing the true mean of 300. Click €œstop€ and €œreset.€
b. Set the slider for level of confidence to 95%. Click €œsample!€ to construct one 95% confidence interval. Note the upper and lower confidence limits and calculate the width of the interval. Using €œanimate!€ construct many samples and note the percent of intervals containing the true mean of 300. Click €œstop€ and €œreset.€
c. Set the slider for level of confidence to 99%. Click €œsample!€ to construct one 99% confidence interval. Note the upper and lower confidence limits and calculate the width of the interval. Using €œanimate!€ construct many samples and note the percent of intervals containing the true mean of 300. Click €œstop.€
d. Using the information collected in parts a€“c, what effect does the level of confidence have on the width of the interval? Why is this happening?

Transcribed Image Text:

μ = 300 and σ 80.