The mean GPA at a certain university is 2.80. Following are GPAs for a random sample of
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The mean GPA at a certain university is 2.80. Following are GPAs for a random sample of 16 business students from this university.
a. Following is a boxplot of the data. Is it reasonable to assume that the population is approximately normal?
b. Assume that the population standard deviation is σ = 0.3. If appropriate, perform a hypothesis test at the α = 0.05 level to determine whether the mean GPA for business students differs from the mean GPA at the whole university. What do you conclude?
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