Data show that men between the ages of 20 and 29 in a general population have a mean height of 69.3 inches, with a standard deviation of 2.5 inches. A baseball analyst wonders whether the standard deviation of heights of major-leage baseball players is less than 2.5 inches. The heights (in inches) of 20 randomly selected players are shown in the table. E Click the icon to view the data table. Test the notion at the a = 0.01 level of significance. Data Table What are the correct hypotheses for this test? The null hypothesis is Ho: o = 2.5. The alternative hypothesis is H,: o < 2.5 72 74 71 73 76 70 77 75 72 72 77 72 75 70 73 74 75 73 74 73 Calculate the value of the test statistic. y2 = (Round to three decimal places as needed.) Print Done

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 14PPS
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Data show that men between the ages of 20 and 29 in a general population have a mean height of 69.3 inches, with a standard deviation of 2.5 inches. A baseball analyst wonders whether the standard deviation of heights of maior-leaque
baseball players is less than 2.5 inches. The heights (in inches) of 20 randomly selected players are shown in the table,
A Click the icon to view the data table.
Test the notion at the a = 0.01 level of significance.
Data Table
What are the correct hypotheses for this test?
The null hypothesis is Ho: o = 2.5.
The alternative hypothesis is H,: 0
< 2.5.
72 74 71 73 76
70 77 75 72 72
77 72 75 70 73
74 75 73 74 73
Calculate the value of the test statistic.
x2 = (Round to three decimal places as needed.)
Print
Done
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Transcribed Image Text:Data show that men between the ages of 20 and 29 in a general population have a mean height of 69.3 inches, with a standard deviation of 2.5 inches. A baseball analyst wonders whether the standard deviation of heights of maior-leaque baseball players is less than 2.5 inches. The heights (in inches) of 20 randomly selected players are shown in the table, A Click the icon to view the data table. Test the notion at the a = 0.01 level of significance. Data Table What are the correct hypotheses for this test? The null hypothesis is Ho: o = 2.5. The alternative hypothesis is H,: 0 < 2.5. 72 74 71 73 76 70 77 75 72 72 77 72 75 70 73 74 75 73 74 73 Calculate the value of the test statistic. x2 = (Round to three decimal places as needed.) Print Done Enter your answer in the answer box and then click Check Answer, Check Answer parts 2 remaining Clear All MacBook Pro 4) 888 F10 esc F5 F6 F7 FB F3 %23 24 % & ! %3D delete 4 6. 7 8. 2 W T Y tab A S D F G J K cops lock > LL V
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