Question
{1} Market researchers use the number of sentences per advertisement as a measure of readability for magazine advertisements. The following represents a random sample of
{1} Market researchers use the number of sentences per advertisement as a measure of readability for magazine advertisements. The following represents a random sample of the number of sentences found in 54 advertisements.9, 20, 18, 16, 9, 16, 16, 9, 11, 13, 22, 16, 5, 18, 6, 65, 12, 25,17, 23,7, 10, 9, 10, 10, 5, 11, 18, 18, 9, 9, 1713, 11, 7, 14, 6, 11, 12, 11, 15, 6, 12, 14, 11, 4, 9, 1812, 12, 17, 11, 20Find the 90 % and 99 % confidence intervals for the mean number of sentences per advertisement
{2} You randomly selected 16 restaurants & measure the Temperature of the coffee sold at each. The sample mean Temp. is 1620 of F with a sample Standard Deviation S of 10. Find the 90 % and 99 % confidence intervals for the mean temperature.
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