This paper circulates around the core theme of Fifteen randomly chosen teenagers were asked how many hours per week they spend on the phone. The sample mean was 4.75 hours with a sample standard deviation of 2.0. Conduct a hypothesis test. together with its essential aspects. It has been reviewed and purchased by the majority of students thus, this paper is rated 4.8 out of 5 points by the students. In addition to this, the price of this paper commences from £ 99. To get this paper written from the scratch, order this assignment now. 100% confidential, 100% plagiarism-free.
Previously, an
organization reported that teenagers spent 4.5 hours per week, on average, on
the phone. The organization thinks that, currently, the mean is higher. Fifteen
randomly chosen teenagers were asked how many hours per week they spend on the
phone. The sample mean was 4.75 hours with a sample standard deviation of 2.0.
Conduct a hypothesis test.
The null and
alternative hypotheses are:
a.
Ho: x ¯ = 4.5, Ha: x ¯ > 4.5
b.
Ho: ? ? 4.5, Ha: ? < 4.5
c.
Ho: ? = 4.75, Ha: ? > 4.75
d.
Ho: ? = 4.5, Ha: ? > 4.5
