Many people believe the average number of Facebook friends a person has is 150. The population standard deviation is 36.7. A random sample of 47 high school students in a particular city revealed that the average number of Facebook friends is 154. At the 0.10 significance level, is there enough evidence to conclude the mean number of Facebook friends is greater than 150? Write the null and alternative hypotheses. H0: H1: ? = 150; ? > 150 ? > 150; ? ? 150 ? = 150; ? < 150
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The null hypothesis (H₀) is that the average number of Facebook friends is equal to 150, and the alternative hypothesis (H₁) is that the average number of Facebook friends is greater than 150. H₀: μ = 150 H₁: μ > 150 Now, we need to calculate the test statistic. Show more…
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Many people believe the average number of Facebook friends a person has is 150. The population standard deviation is 36.7. A random sample of 47 high school students in a particular city revealed that the average number of Facebook friends is 154. At the 0.10 significance level, is there enough evidence to conclude the mean number of Facebook friends is greater than 150? Write the null and alternative hypotheses. H0: H1: μ = 150; μ > 150 μ > 150; μ ≤ 150 μ = 150; μ < 150
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