A school principal claims that the number of students who are tardy to school does not vary from month to month. A survey over the school year produced the following results. Using a 0.01 level of significance, test a teacher's claim that the number of tardy students does vary by the month. Number Aug. Sept. Oct. 18 13 19 Tardy Students Nov. 14 Dec. Jan. 8 Feb. Mar. Apr. May 6 13 11 15 16 Copy Data Step 3 of 4: Compute the value of the test statistic. Round any intermediate calculations to at least six decimal places, and round your final answer to three decimal places.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A school principal claims that the number of students who are tardy to school does not vary from month to month. A survey over the school year
produced the following results. Using a 0.01 level of significance, test a teacher's claim that the number of tardy students does vary by the month.
Number
Aug. Sept.
Oct.
18 13 19
Tardy Students
Nov.
14
Dec. Jan. Feb. Mar. Apr. May
8 6 13 11 15 16
Copy Data
Step 3 of 4: Compute the value of the test statistic. Round any intermediate calculations to at least six decimal places, and round your final answer
to three decimal places.
Transcribed Image Text:A school principal claims that the number of students who are tardy to school does not vary from month to month. A survey over the school year produced the following results. Using a 0.01 level of significance, test a teacher's claim that the number of tardy students does vary by the month. Number Aug. Sept. Oct. 18 13 19 Tardy Students Nov. 14 Dec. Jan. Feb. Mar. Apr. May 8 6 13 11 15 16 Copy Data Step 3 of 4: Compute the value of the test statistic. Round any intermediate calculations to at least six decimal places, and round your final answer to three decimal places.
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