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Hypothesis testing

1. A social scientist claims that, on average, adults watch less than 26 hours of television per week. Data are collected on the television-viewing habits of 25 randomly selected individuals. This sample indicates that the mean number of hours per week of watching television for an individual is 22.4 hours.

a) formulate a suitable null and alternative hypothesis for testing the claim

b) If the population standard deviation is known to be 8 hrs, can it be concluded at the 1 % significance level, that the social scientist is right?

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1. A social scientist claims that, on average, adults watch less than 26 hours of television per week. Data are collected on the television-viewing habits of 25 randomly selected individuals. This sample indicates that the mean number of hours per week of watching television for an individual is 22.4 hours.

a) formulate a suitable null and alternative hypothesis for testing the claim

Null ...

Solution Summary

Tests the hypothesis that on average, adults watch less than 26 hours of television per week.

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