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4. The burning time (in minutes) of heaters used in the protection of orchards from frost is measured for random samples of two different brands, A and B, yielding the following results: Standard deviation Brand Sample Size Mean A 625 B 580 14 12 45 35 a) Does the data provide sufficient evidence to conclude that the burning time for Brand A is, on average, the same as the burning time for Brand B? Use a = 0.01. State all assumptions that are needed for your test to be valid. b) Estimate the difference in mean burning times using a 99% confidence interval.

4. The burning time (in minutes) of heaters used in the protection of orchards from frost is measured for random samples of two different brands, A and B, yielding the following results: Standard deviation Brand Sample Size Mean A 625 B 580 14 12 45 35 a) Does the data provide sufficient evidence to conclude that the burning time for Brand A is, on average, the same as the burning time for Brand B? Use a = 0.01. State all assumptions that are needed for your test to be valid. b) Estimate the difference in mean burning times using a 99% confidence interval.

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
Section10.4: Distributions Of Data
Problem 19PFA
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supporting the legalization of marijuana. 4. The burning time (in minutes) of heaters used in the protection of orchards from frost is measured for random samples of two different brands, A and B, yielding the following results: Standard deviation ! F1 old a) Does the data provide sufficient evidence to conclude that the burning time for Brand A is, on average, the same as the burning time for Brand B? Use a = 0.01. State all assumptions that are needed for your test to be valid. My b) Estimate the difference in mean burning times using a 99% confidence interval. Unvies Brand Sample Size Mean A 625 B 580 Ama 2022-08-20 Locked Notes @ 30 F2 # 14 12 80 F3 $ Q F4 BLO % 1 45 35 9 F5 F6 & F7 F8 AN F9
Transcribed Image Text:supporting the legalization of marijuana. 4. The burning time (in minutes) of heaters used in the protection of orchards from frost is measured for random samples of two different brands, A and B, yielding the following results: Standard deviation ! F1 old a) Does the data provide sufficient evidence to conclude that the burning time for Brand A is, on average, the same as the burning time for Brand B? Use a = 0.01. State all assumptions that are needed for your test to be valid. My b) Estimate the difference in mean burning times using a 99% confidence interval. Unvies Brand Sample Size Mean A 625 B 580 Ama 2022-08-20 Locked Notes @ 30 F2 # 14 12 80 F3 $ Q F4 BLO % 1 45 35 9 F5 F6 & F7 F8 AN F9
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