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1. Solve for a when x = and z = = 3.19, 8.1 and σ = 4.7. 2. Claim: More than 3.8% of homes have only a landline telephone and no wireless phone. Sample data: A survey by the National Center for Health Statistics showed that among 14,424 homes 5.76% had landline phones without wireless phones. Complete parts (a) and (b). (a) Express the original claim in symbolic form. Let the parameter represent a value with respect to homes that have only a landline telephone and no wireless phone. (b) Identify the null and alternative hypotheses. 3. In a test of a sex-selection technique, results consisted of 228 female babies and 10 male babies. Based on this result, what is the probability of a female being born to a couple using this technique?

1. Solve for a when x = and z = = 3.19, 8.1 and σ = 4.7. 2. Claim: More than 3.8% of homes have only a landline telephone and no wireless phone. Sample data: A survey by the National Center for Health Statistics showed that among 14,424 homes 5.76% had landline phones without wireless phones. Complete parts (a) and (b). (a) Express the original claim in symbolic form. Let the parameter represent a value with respect to homes that have only a landline telephone and no wireless phone. (b) Identify the null and alternative hypotheses. 3. In a test of a sex-selection technique, results consisted of 228 female babies and 10 male babies. Based on this result, what is the probability of a female being born to a couple using this technique?

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
Section10.5: Comparing Sets Of Data
Problem 14PPS
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1. Solve for a when x = and z = = 3.19, 8.1 and σ = 4.7. 2. Claim: More than 3.8% of homes have only a landline telephone and no wireless phone. Sample data: A survey by the National Center for Health Statistics showed that among 14,424 homes 5.76% had landline phones without wireless phones. Complete parts (a) and (b). (a) Express the original claim in symbolic form. Let the parameter represent a value with respect to homes that have only a landline telephone and no wireless phone. (b) Identify the null and alternative hypotheses. 3. In a test of a sex-selection technique, results consisted of 228 female babies and 10 male babies. Based on this result, what is the probability of a female being born to a couple using this technique?
Transcribed Image Text:1. Solve for a when x = and z = = 3.19, 8.1 and σ = 4.7. 2. Claim: More than 3.8% of homes have only a landline telephone and no wireless phone. Sample data: A survey by the National Center for Health Statistics showed that among 14,424 homes 5.76% had landline phones without wireless phones. Complete parts (a) and (b). (a) Express the original claim in symbolic form. Let the parameter represent a value with respect to homes that have only a landline telephone and no wireless phone. (b) Identify the null and alternative hypotheses. 3. In a test of a sex-selection technique, results consisted of 228 female babies and 10 male babies. Based on this result, what is the probability of a female being born to a couple using this technique?
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