The row and column totals will be used to find the expected frequencies. Expected frequencies are...

Transcribed Image Text:

The row and column totals will be used to find the expected frequencies. Expected frequencies are calculated assuming Ho is true, that all of the population proportions are the same. The following row and column totals were found from the given observed data. Hours of Sleep Fewer than 6 6 to 6.9 7 to 7.9 8 or more Total Hours of Sleep Fewer than 6 6 to 6.9 7 to 7.9 8 or more 39 or younger 38 61 77 64 Age Group 240 40 or older Total 36 39 or younger 74(240) 500 = 35.52 58 75 (Row / Total) (Column j Total). There are i= 4 rows representing the categories for hours of sleep and j = 2 columns representing the categories for age group. The expected frequencies are calculated as eij Total Sample Size 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. 91 Age Group T 260 40 or older 74 119 152 155 500 The row and column totals will be used to find the expected frequencies. Expected frequencies are calculated assuming Ho is true, that all of the population proportions are the same. The following row and column totals were found from the given observed data. Hours of Sleep Fewer than 6 6 to 6.9 7 to 7.9 8 or more Total Hours of Sleep Fewer than 6 6 to 6.9 7 to 7.9 8 or more 39 or younger 38 61 77 64 Age Group 240 40 or older Total 36 39 or younger 74(240) 500 = 35.52 58 75 (Row / Total) (Column j Total). There are i= 4 rows representing the categories for hours of sleep and j = 2 columns representing the categories for age group. The expected frequencies are calculated as eij Total Sample Size 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. 91 Age Group T 260 40 or older 74 119 152 155 500

Answer rating: 100% (QA)

Hours of sleep tewer than 6 66 69 7 to 79 ... View the full answer