SOLUTION: If someone could assist with this I would be eternally grateful: Previously, an organization reported that teenagers spent 4.5 hours per week, on average, on the phone. The orga

Question 1050287: If someone could assist with this I would be eternally grateful:
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: μ ≥ 4.5, Ha: μ < 4.5
c. Ho: μ = 4.75, Ha: μ > 4.75
d. Ho: μ = 4.5, Ha: μ > 4.5

Thank you!
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Ho: μ = 4.5 Claim
Ha: μ > 4.5 (As Your x̄ was > 4.5)
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