# In-class activity Without using any measuring device, each student should draw a line believed to be…

In-class activity Without using any measuring device, each student should draw a line believed to be 3 in. long and another line believed to be 3 cm long. Then use rulers to measureand record the lengths of the lines drawn. Find the means and standard deviations of the two sets of lengths. Use the sample data to construct a confidence interval for thelength of the line estimated to be 3 in., then do the same for the length of the line estimatedto be 3 cm. Do the confidence interval limits actually contain the correct length? Compare the results. Do the estimates of the 3-in. line appear to be more accurate than those for the 3-cm line?

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In-class activity Without using any measuring device, each student should draw a line believed to be…

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