Mathematics, 18.11.2019 22:31, litttyyyu33411
Assume the general population gets an average of 7 hours of sleep per night. you randomly select 45 college students and survey them on their sleep habits. from this sample, the mean number of hours of sleep is found to be 6.87 hours with a standard deviation of 0.55 hours. you claim that college students get less sleep than the general population. that is, you claim the mean number of hours of sleep for all college students is less than 7 hours. test this claim at the 0.10 significance level.
(a) what type of test is this?
this is a right-tailed test. this is a left-tailed test. this is a two-tailed test.
(b) what is the test statistic? round your answer to 2 decimal places.
tx=
(c) what is the critical value of t? use the answer found in the t-table or round to 3 decimal places.
tα =
(d) what is the conclusion regarding the null hypothesis?
reject h0
fail to reject h0
(e) choose the appropriate concluding statement.
the data supports the claim that college students get less sleep than the general population.
there is not enough data to support the claim that college students get less sleep than the general population.
we reject the claim that college students get less sleep than the general population.
we have proven that college students get less sleep than the general population.
Answers: 3
Mathematics, 21.06.2019 16:20, jaylanmahone223
Apolynomial function has a root of –6 with multiplicity 1, a root of –2 with multiplicity 3, a root of 0 with multiplicity 2, and a root of 4 with multiplicity 3. if the function has a positive leading coefficient and is of odd degree, which statement about the graph is true?
Answers: 2
Mathematics, 21.06.2019 20:00, songulakabulut1992
Maurice has 54 fewer comic books than rebecca. they have 130 comic books together .how many comic books are in maurices collection ? how many comic books are in rebeccas collection
Answers: 1
Mathematics, 21.06.2019 22:00, angeloliv1012
Solve 2 - 3 cos x = 5 + 3 cos x for 0° ≤ x ≤ 180° a. 150° b. 30° c. 60° d. 120°
Answers: 1
Assume the general population gets an average of 7 hours of sleep per night. you randomly select 45...
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