Given that the data comes from an underlying normal distribution, and that x = 13.2, S 2

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Given that the data comes from an underlying normal distribution, and that x̅ = 13.2, S²_x = 18, find the confidence interval for the sample size stated.

a. 90% confidence interval, n = 8

b. 90% confidence interval, n = 6

c. 90% confidence interval, n = 9

d. 95% confidence interval, n = 7

e. 99% confidence interval, n = 9

f. 80% confidence interval, n = 10

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Cambridge International AS & A Level Further Mathematics Coursebook

ISBN: 9781108403375

1st Edition

Authors: Lee Mckelvey, Martin Crozier

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Question Posted: Sep 27, 2021 01:20 AM

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Given that the data comes from an underlying normal distribution, and that x = 13.2, S 2

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a 90 confidence interval is 8 26045 68 to 15 b 90 confid...View the full answer

Cambridge International AS & A Level Further Mathematics Coursebook

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