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Age Group Hours of Sleep 39 or younger 40 or older Total Fewer than 6 38 36 74 6 to 6.9 60 57 117 7 to 7.9 76 74 150 8 or more 66 93 159 Total 240 260 500 (Row i Total)(Column j Total) The expected frequencies are calculated as e; There are i = 4 rows Total Sample Size

Age Group Hours of Sleep 39 or younger 40 or older Total Fewer than 6 38 36 74 6 to 6.9 60 57 117 7 to 7.9 76 74 150 8 or more 66 93 159 Total 240 260 500 (Row i Total)(Column j Total) The expected frequencies are calculated as e; There are i = 4 rows Total Sample Size

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Age Group Hours of Sleep 39 or younger 40 or older Total Fewer than 6 38 36 74 6 to 6.9 60 57 117 7 to 7.9 76 74 150 8 or more 66 93 159 Total 240 260 500 (Row i Total)(Column j Total) The expected frequencies are calculated as e; There are i = 4 rows Total Sample Size representing the categories for hours of sleep and j = 2 columns representing the categories for age group. To find the expected number of people who get fewer than 6 hours of sleep per night and are age 39 or younger, multiply the total for the Fewer than 6 row, 74, by the total for the 39 or younger column, 240, and then divide this product by the total sample size, 500. Calculate the expected frequencies. Note that the row and column totals will be the same as for the observed frequencies. Age Group Hours of Sleep 39 or younger 40 or older 74(240) Fewer than 6 = 35.52 500 6 to 6.9 7 to 7.9 8 or more
Transcribed Image Text:Age Group Hours of Sleep 39 or younger 40 or older Total Fewer than 6 38 36 74 6 to 6.9 60 57 117 7 to 7.9 76 74 150 8 or more 66 93 159 Total 240 260 500 (Row i Total)(Column j Total) The expected frequencies are calculated as e; There are i = 4 rows Total Sample Size representing the categories for hours of sleep and j = 2 columns representing the categories for age group. To find the expected number of people who get fewer than 6 hours of sleep per night and are age 39 or younger, multiply the total for the Fewer than 6 row, 74, by the total for the 39 or younger column, 240, and then divide this product by the total sample size, 500. Calculate the expected frequencies. Note that the row and column totals will be the same as for the observed frequencies. Age Group Hours of Sleep 39 or younger 40 or older 74(240) Fewer than 6 = 35.52 500 6 to 6.9 7 to 7.9 8 or more
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Step 1

Given Data:

Hours of Sleep 39 or younger 40 or older Total
Fewer than 6 38 36 74
6 to 6.9 60 57 117
7 to 7.9 76 74 150
8 or more 66 93 159
Total 240 260 500
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