State the null hypothesis and the alternative hypothesis in words and in symbol. Sketch the graphical representation of the test. A. A librarian at school claims that all their grade 8 students read an average of 10 storybooks a month with a standard deviation of 2 books. A random sample of grade 8 students read an average 12 books a month and a standard deviation of 1 book. The confidence statement is 95 %.
State the null hypothesis and the alternative hypothesis in words and in symbol. Sketch the graphical representation of the test. A. A librarian at school claims that all their grade 8 students read an average of 10 storybooks a month with a standard deviation of 2 books. A random sample of grade 8 students read an average 12 books a month and a standard deviation of 1 book. The confidence statement is 95 %.
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Transcribed Image Text:State the null hypothesis and the alternative hypothesis in words and in symbol. Sketch the
graphical representation of the test.
A. A librarian at school claims that all their grade 8 students read an average of 10 storybooks a
month with a standard deviation of 2 books. A random sample of grade 8 students read an
average 12 books a month and a standard deviation of 1 book. The confidence statement is
95 %.
B. According to a factory employer, the mean working time of workers in the factory is 6 hours
with a standard deviation of 0.5 hours. A researcher interviewed 50% of the employees and
found out that their mean working time is 8 hours with a standard deviation of 1 hour. The
a-level is 0.05.
C. A random sample of 200 students got a mean score of 62 with a standard deviation score of
5 in a knowledge test in mathematics. In the standardization of the test, u=50 and o=10.
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