Annual income: The mean annual income for people in a certain city (in thousands of dollars) is 41, with a standard deviation of 28. A pollster draws a sample of 92 people to interview. Part 1 of 5 (a) What is the probability that the sample mean income is less than 37? Round the answer to at least four decimal places. The probability that the sample mean income Is less than 37 is Part 2 of 5 (b) What is the probability that the sample mean income is between 38 and 45? Round the answer to at least four decimal places. The probability that the sample mean income is between 38 and 45 is

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Annual income: The mean annual income for people in a certain city (in thousands of dollars) is 41, with a standard deviation of 28. A pollster draws a sample of 92 people to interview.
Annual income: The mean annual income for people in a certain city (in thousands of dollars) is 41, with a standard devlation of
28. A pollster draws a sample of 92 people to interview.
Part 1 of 5
(a) What is the probability that the sample mean income is less than 37? Round the answer to at least four decimal places.
The probablity that the sample mean income Is less than 37 is
Part 2 of 5
(b) What is the probability that the sample mean income is between 38 and 45? Round the answer to at least four decimal
places.
The probability that the sample mean income is between 38 and 45 is
Transcribed Image Text:Annual income: The mean annual income for people in a certain city (in thousands of dollars) is 41, with a standard devlation of 28. A pollster draws a sample of 92 people to interview. Part 1 of 5 (a) What is the probability that the sample mean income is less than 37? Round the answer to at least four decimal places. The probablity that the sample mean income Is less than 37 is Part 2 of 5 (b) What is the probability that the sample mean income is between 38 and 45? Round the answer to at least four decimal places. The probability that the sample mean income is between 38 and 45 is
Part 3 of 5
(c) Find the 80th
percentile of the sample mean. Round the answer to at least one decimal place.
The 80th
percentile of the sample mean is
Transcribed Image Text:Part 3 of 5 (c) Find the 80th percentile of the sample mean. Round the answer to at least one decimal place. The 80th percentile of the sample mean is
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