3. Based on per capita consumption sales data, the average number of alcoholic drinks that Americans typically consume per week is 9 5 with a standard deviation of 2.4. a) What percent of Americans typically consume an average of at least 7.8 alcoholic drinks per week if a sample of 37 Americans are chosen? b) Find the proportion of Americans who consume and average of between 7.2 and 10.1 alcoholic drinks per week. Assume that a sample of 19 Americans is chosen and that the data is normally distributed.

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3. Based on per capita consumption sales data, the average number of alcoholic drinks that
Americans typically consume per week is 9 5 with a standard deviation of 2.4.
a) What percent of Americans typically consume an average of at least 7.8 alcoholic drinks per
week if a sample of 37 Americans are chosen?
b) Find the proportion of Americans who consume and average of between 7.2 and 10.1 alcoholic
drinks per week. Assume that a sample of 19 Americans is chosen and that the data is normally
distributed.
Transcribed Image Text:3. Based on per capita consumption sales data, the average number of alcoholic drinks that Americans typically consume per week is 9 5 with a standard deviation of 2.4. a) What percent of Americans typically consume an average of at least 7.8 alcoholic drinks per week if a sample of 37 Americans are chosen? b) Find the proportion of Americans who consume and average of between 7.2 and 10.1 alcoholic drinks per week. Assume that a sample of 19 Americans is chosen and that the data is normally distributed.
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