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point(s) possible A random sample of 20 purchases showed the amounts in the table (in S). The mean is $51.94 and the standard deviation

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point(s) possible A random sample of 20 purchases showed the amounts in the table (in S). The mean is $51.94 and the standard deviation is $21.23 a) What is the standard error of the mean? b) How would the standard error change if the sample size had been 5 instead of 20? (Assume that the sample standard deviation didn't change.) Submit quiz 62 18 62 24 43.33 44.22 82 41 82 83 27.47 69.57 50.70 52.38 86 36 14.80 34.95 36 26 36 28 17.49 77 21 58 81 59.53 39.74 a) The standard error of the mean is (Round to two decimal places as needed.) b) How would the standard error change if the sample size was 5 instead of 20 with the same sample standard deviation? Select the correct choice below and fill in any answer boxes within your choice OA. The standard error would increase. The new standard error would be times the old OB. The standard error would decrease. The new standard error would be the old standard error divided by OC. The standard error would not change

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