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?Which of the following statements is correc the z-test can be used when the population standard deviation are known regardless .A O .of the sample sizes none of the statements are true. .B O all of the statements are true .C O X-Y- Do .D O is used whenever the population T== the pooled-variances t-test : .standard deviations can be assumed to be equal the z-test can be used when the population standard deviation are unknown but .E O (sample sizes are large (typically greater than 30

?Which of the following statements is correc the z-test can be used when the population standard deviation are known regardless .A O .of the sample sizes none of the statements are true. .B O all of the statements are true .C O X-Y- Do .D O is used whenever the population T== the pooled-variances t-test : .standard deviations can be assumed to be equal the z-test can be used when the population standard deviation are unknown but .E O (sample sizes are large (typically greater than 30

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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?Which of the following statements is correct the z-test can be used when the population standard deviation are known regardless .A .of the sample sizes none of the statements are true. .B all of the statements are true .C O X-Y-Do T = .D the pooled-variances t-test : is used whenever the population SPV n1 .standard deviations can be assumed to be equal n2 the z-test can be used when the population standard deviation are unknown but .E O (sample sizes are large (typically greater than 30
Transcribed Image Text:?Which of the following statements is correct the z-test can be used when the population standard deviation are known regardless .A .of the sample sizes none of the statements are true. .B all of the statements are true .C O X-Y-Do T = .D the pooled-variances t-test : is used whenever the population SPV n1 .standard deviations can be assumed to be equal n2 the z-test can be used when the population standard deviation are unknown but .E O (sample sizes are large (typically greater than 30
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