MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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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.
Oct.
Sept.
18 13 19
Tardy Students
Nov. Dec. Jan.
14 8
Feb. Mar. Apr.
6 13 11 15
May
16
Copy Data
Step 2 of 4: Calculate the expected value for the number of tardies in October. Enter your answer as a fraction or a decimal rounded to three
decimal places.
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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. Oct. Sept. 18 13 19 Tardy Students Nov. Dec. Jan. 14 8 Feb. Mar. Apr. 6 13 11 15 May 16 Copy Data Step 2 of 4: Calculate the expected value for the number of tardies in October. Enter your answer as a fraction or a decimal rounded to three decimal places.
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