Mathematics, 10.05.2021 20:10 heathhm623

Harry Potter casts a magic spell to find out that the number of times a bad guy scowls in a day is normally distributed with a standard deviation of 10.2. He then samples 8 bad guys and notices they scowled an average of 43 times per day. Find a 86% confidence interval for the true average number of scowls per d

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