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A random sample of 12-ounce milkshakes from 11 fast-food restaurants had the following number of calories. Assume the population standard deviation is 89. 473 476 700 375 642 608 510 591 450 580 472 a. What is the point estimate for the mean of 2-ounce milkshakes from all fast-food restaurants of the same chain?

A random sample of 12-ounce milkshakes from 11 fast-food restaurants had the following number of calories. Assume the population standard deviation is 89. 473 476 700 375 642 608 510 591 450 580 472 a. What is the point estimate for the mean of 2-ounce milkshakes from all fast-food restaurants of the same chain?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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A random sample of 12-ounce milkshakes from 11 fast-food restaurants had the following number of calories. Assume the population standard deviation is 89. 473 476 700 375 642 608 510 591 450 580 472 a. What is the point estimate for the mean of 2-ounce milkshakes from all fast-food restaurants of the same chain?
Transcribed Image Text:A random sample of 12-ounce milkshakes from 11 fast-food restaurants had the following number of calories. Assume the population standard deviation is 89. 473 476 700 375 642 608 510 591 450 580 472 a. What is the point estimate for the mean of 2-ounce milkshakes from all fast-food restaurants of the same chain?
QUESTION 3 In 2012 the General Social Survey asked 832 adults how many years of education they had. The sample mean was 7.32 years with a standard deviation of 7.19 years. a. What is the point estimate for the population mean number of years of education for all US adults? b. Calculate the appropriate critical value (Z a/2 or ta/2) at 98.5% confidence level c. Calculate the margin of error for 98.5% Confidence level d. Compute the 98.5% Confidence Interval for the population mean number of years of education for all US adults For this question, type in the 5 answers you got for each sub-question starting with the corresponding letter. Example a= 456, b-445, c-435, d-425, e-415
Transcribed Image Text:QUESTION 3 In 2012 the General Social Survey asked 832 adults how many years of education they had. The sample mean was 7.32 years with a standard deviation of 7.19 years. a. What is the point estimate for the population mean number of years of education for all US adults? b. Calculate the appropriate critical value (Z a/2 or ta/2) at 98.5% confidence level c. Calculate the margin of error for 98.5% Confidence level d. Compute the 98.5% Confidence Interval for the population mean number of years of education for all US adults For this question, type in the 5 answers you got for each sub-question starting with the corresponding letter. Example a= 456, b-445, c-435, d-425, e-415
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