A science teacher claims that the mean scores on a science assessment test for fourth grade boys and girls are equal. The mean score for 53 randomly selected boys is 138 with a standard deviation of 39, and the mean score for 75 randomly selected girls is 138 with a standard deviation of 30. At α = 0.05, can you reject the teacher’s claim? Assume the populations are normally distributed and the population variances are equal. Can you answer this question using technology such as StatCrunch or excel?
A science teacher claims that the mean scores on a science assessment test for fourth grade boys and girls are equal. The mean score for 53 randomly selected boys is 138 with a standard deviation of 39, and the mean score for 75 randomly selected girls is 138 with a standard deviation of 30. At α = 0.05, can you reject the teacher’s claim? Assume the populations are normally distributed and the population variances are equal. Can you answer this question using technology such as StatCrunch or excel?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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- A science teacher claims that the mean scores on a science assessment test for fourth grade boys and girls are equal. The mean score for 53 randomly selected boys is 138 with a standard deviation of 39, and the mean score for 75 randomly selected girls is 138 with a standard deviation of 30. At α = 0.05, can you reject the teacher’s claim? Assume the populations are
normally distributed and the population variances are equal.
Can you answer this question using technology such as StatCrunch or excel?
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