(tb_79) According to a national sleep foundation, the average number of hours of sleep teenagers are supposed to get each night is 8.5 hours. A teacher at a local high school believes that their students, on average, sleep less than 8.5 hours. To test this claim, the teacher takes a random sample of 10 students. The average number of hours slept for the students in the sample is 6.7 hours with a standard deviation of 2.1 hours. Do these data provide convincing evidence that the mean number of hours slept at this high school is less than the suggested 8.5 hours? 8.1.1 State appropriate hypotheses for performing a significance test. Be sure to define the parameter of interest.

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(tb_79) According to a national sleep foundation, the average number of hours of sleep teenagers are
supposed to get each night is 8.5 hours. A teacher at a local high school believes that their students, on average,
sleep less than 8.5 hours. To test this claim, the teacher takes a random sample of 10 students. The average
number of hours slept for the students in the sample is 6.7 hours with a standard deviation of 2.1 hours. Do
these data provide convincing evidence that the mean number of hours slept at this high school is less than the
suggested 8.5 hours?
8.1.1 State appropriate hypotheses for performing a significance test. Be sure to define the parameter of
interest.
Transcribed Image Text:(tb_79) According to a national sleep foundation, the average number of hours of sleep teenagers are supposed to get each night is 8.5 hours. A teacher at a local high school believes that their students, on average, sleep less than 8.5 hours. To test this claim, the teacher takes a random sample of 10 students. The average number of hours slept for the students in the sample is 6.7 hours with a standard deviation of 2.1 hours. Do these data provide convincing evidence that the mean number of hours slept at this high school is less than the suggested 8.5 hours? 8.1.1 State appropriate hypotheses for performing a significance test. Be sure to define the parameter of interest.
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