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1. If n2 30 and sample standard deviation is known, the test statistic to be used is: Test Statistic: Z = – Test Statistic: t = A. в.

1. If n2 30 and sample standard deviation is known, the test statistic to be used is: Test Statistic: Z = – Test Statistic: t = A. в.

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
Section10.3: Measures Of Spread
Problem 26PFA
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1. If n2 30 and sample standard deviation is known, the test statistic to be 3. A manufacturer claims that the average lifetime of his lightbulbs is 3 1 point used is: years or 36 months. The standard deviation is 8 months. Fifty bulbs are selected , and the average lifetime is found to be 32 months. What statistical test is to be used? x-u Test Statistic: z= Test Statistic: t = А. B Test Statistic: Z =¯ Test Statistic: t = - Vn А. В. 4. Given are X = 35, µ = 38, s = 10, n = 20, Determine the statistical test to 2. If n < 30 and sample are taken from the same population, the test be used. statistic to be used is: Test Statistic: z = x-µ Test Statistic: t = Test Statistic: z =- Test Statistic:t =X-u A. vn В. А. 5. Given are x = 90, µ = 88, o = 6, n = 100. Find the value of z. A. 3.33 В. - 3. 33 B.
Transcribed Image Text:1. If n2 30 and sample standard deviation is known, the test statistic to be 3. A manufacturer claims that the average lifetime of his lightbulbs is 3 1 point used is: years or 36 months. The standard deviation is 8 months. Fifty bulbs are selected , and the average lifetime is found to be 32 months. What statistical test is to be used? x-u Test Statistic: z= Test Statistic: t = А. B Test Statistic: Z =¯ Test Statistic: t = - Vn А. В. 4. Given are X = 35, µ = 38, s = 10, n = 20, Determine the statistical test to 2. If n < 30 and sample are taken from the same population, the test be used. statistic to be used is: Test Statistic: z = x-µ Test Statistic: t = Test Statistic: z =- Test Statistic:t =X-u A. vn В. А. 5. Given are x = 90, µ = 88, o = 6, n = 100. Find the value of z. A. 3.33 В. - 3. 33 B.
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