Obtain 18 straws from the cafeteria or supermarket. Cut 6 of them in half, cut 6 of
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Obtain 18 straws from the cafeteria or supermarket. Cut 6 of them in half, cut 6 of them into quarters, and leave the other 6 as they are. There should now be 42 straws of different lengths. Put them in a bag, mix them up, then select one straw, find its length, then replace it. Repeat this until 20 straws have been selected. Important: Select the straws without looking into the bag and select the first straw that is touched. Find the average (mean) of the sample of 20 straws. Now remove all of the straws and find the average (mean) of the population. Did the sample provide an average (mean) that was close to the true population average (mean)? Why or why not?
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The process described involves obtaining 18 straws of different lengths cutting some of them into ha...View the full answer
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