5. A tutor wants to know which night each week his students prefer to work on their assignments. Suppose a random sample of 49 students were asked on which night of the week they prefer to work on their assignment. Below is the summary table of the finding. Night sun mon tues wed thur fri sat No. Of students 11 6 8 5 9 5 5 (a)Calculate the expected frequency for each night. (b)Test whether the frequencies are equally distributed during the week using a 5% level of significance.
5. A tutor wants to know which night each week his students prefer to work on their assignments. Suppose a random sample of 49 students were asked on which night of the week they prefer to work on their assignment. Below is the summary table of the finding. Night sun mon tues wed thur fri sat No. Of students 11 6 8 5 9 5 5 (a)Calculate the expected frequency for each night. (b)Test whether the frequencies are equally distributed during the week using a 5% level of significance.
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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5. A tutor wants to know which night each week his students prefer to work on their assignments. Suppose a random sample of 49 students were asked on which night of the week they prefer to work on their assignment. Below is the summary table of the finding.
Night sun mon tues wed thur fri sat
No. Of
students 11 6 8 5 9 5 5
(a)Calculate the expected frequency for each night.
(b)Test whether the frequencies are equally distributed during the week using a 5% level of significance.
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