Find a point estimate for the mean of all new product. Interpret your answer in we Determine a 95.44% confidence interval for the mean of all new product. Assume Must the data for new product be exactly normally distributed for the confidence that you obtained in part (b) to be approximately correct? Explain your answer.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter4: Equations Of Linear Functions
Section: Chapter Questions
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Consumer Reports provides information on new product –including price, satisfaction ratings,
product size, product weight, and indicators of features. A simple random sample of 35 new
product yielded the following data,
17.2
23.1
17.5
15.7
19.8
16.9
15.3
18.5
18.5
25.5
18.0
17.5
14.5
20.0
17.0
20.0
24.0
26.0
18.1
21.0
19.3
20.0
20.0
12.5
13.2
15.9
14.5
22.2
21.1
14.4
25.0
26.4
16.9
16.4
23.0
a. Find a point estimate for the mean of all new product. Interpret your answer in words.
b. Determine a 95.44% confidence interval for the mean of all new product. Assume o = 3.50.
c. Must the data for new product be exactly normally distributed for the confidence interval
that you obtained in part (b) to be approximately correct? Explain your answer.
Transcribed Image Text:Consumer Reports provides information on new product –including price, satisfaction ratings, product size, product weight, and indicators of features. A simple random sample of 35 new product yielded the following data, 17.2 23.1 17.5 15.7 19.8 16.9 15.3 18.5 18.5 25.5 18.0 17.5 14.5 20.0 17.0 20.0 24.0 26.0 18.1 21.0 19.3 20.0 20.0 12.5 13.2 15.9 14.5 22.2 21.1 14.4 25.0 26.4 16.9 16.4 23.0 a. Find a point estimate for the mean of all new product. Interpret your answer in words. b. Determine a 95.44% confidence interval for the mean of all new product. Assume o = 3.50. c. Must the data for new product be exactly normally distributed for the confidence interval that you obtained in part (b) to be approximately correct? Explain your answer.
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