To determine the mean cost of groceries in a certain city, an identical grocery basket of food is purchased at each store in a random sample of ten stores. If the average cost is $47.52 with a standard deviation of $1.59, find a 98% confidence interval estimate for the cost of these groceries in the city. 1.59 VI0 47.52土2.821 047.52土2.33V1.59 47.52 + 2.821 ( 1.59 10 O 47.52 + 2.33 VIO 1.59 47.52土2.33 1.59 10

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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To determine the mean cost of groceries in a certain city, an identical grocery basket of food is purchased at
each store in a random sample of ten stores. If the average cost is $47.52 with a standard deviation of $1.59,
find a 98% confidence interval estimate for the cost of these groceries in the city.
1.59
47.52土2.821(
V10
O 47.52 + 2.33/1.59
47.52 + 2.821 (
1.59
10
O 47.52 + 2.33 (
VIO
1.59
47.52土2.33
1.59
10
Transcribed Image Text:To determine the mean cost of groceries in a certain city, an identical grocery basket of food is purchased at each store in a random sample of ten stores. If the average cost is $47.52 with a standard deviation of $1.59, find a 98% confidence interval estimate for the cost of these groceries in the city. 1.59 47.52土2.821( V10 O 47.52 + 2.33/1.59 47.52 + 2.821 ( 1.59 10 O 47.52 + 2.33 ( VIO 1.59 47.52土2.33 1.59 10
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