35% of women with long hair have split ends. A hair stylist believes this proportion is smaller for her clients using her salon. A sample of 178 women with long hair using her salon, showed 33.96% have split ends. Is there enough evidence to support her claim at α = .03

35% of women with long hair have split ends. A hair stylist believes this proportion is smaller for her clients using her salon. A sample of 178 women with long hair using her salon, showed 33.96% have split ends. Is there enough evidence to support her claim at α = .03

Name: 30. 35% of women with long hair have split ends. A hair stylist belie
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: 30. 35% of women with long hair have split ends. A hair stylist believes this proportion is smaller for her clients using her salon. A sample of 178 women with long hair using her salon, showed 33.96% have split ends. Is there enough evidence to s

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

See similar textbooks

Similar questions

31. 86% of women shave their legs. A cosmetologist thinks this is lower in Europe. A sample of 335 European women shows 285 shave their legs. Test the claim at α = .10
A researcher wants to determine whether the time spent online per day is related to gender. A random sample of 315 adults was selected and the results are shown below. Test the hypothesis that the time spent online per day is related to gender. Use α = 0.05.
A market researcher claims that the purchases for a particular gift item are men, 50 percent; women, 40 percent; and children under 18, 10 percent. The researcher takes a sample in a very large department store and finds in a given week that 43 items were purchased by men, 33 by women, and 4 by children under 18. Does the evidence support the claim of the market researcher? Use alpha = 0.05
. It is known 35% of women with long hair have split ends. A hair stylist believes this proportion is smaller for her clients using her salon. A sample of 178 women with long hair using her salon, showed 33.96% have split ends. Is there enough evidence to support her claim at α = .03 (by hand)
A medical researcher is interested in determining if there is a relationship between adults over 50 who exercise regularly and levels of blood pressure. A random sample of 236 adults over 50 is selected and the results are given below. Calculate the test statistic to test the claim that regular exercise and blood pressure are independent. Use α = 0.01.
14% of all Americans suffer from sleep apnea. A researcher suspects that a higher percentage of those who live in the inner city have sleep apnea. Of the 391 people from the inner city surveyed, 59 of them suffered from sleep apnea. What can be concluded at the level of significance of αα = 0.05?