A researcher wishes to determine whether the systolic blood pressure of people who follow a vegetarian...

A researcher wishes to determine whether the systolic blood pressure of people who follow a vegetarian diet is, on average, lower than the systolic blood pressure of those who do not follow a vegetarian diet. Independent simple random samples of 85 vegetarian and 75 nonvegetarians yielded the following sample statistics:

Vegetarians	Nonvegetarians
Mean = 124.1	Mean = 138.7
s₁ = 38.7	s₂ = 39.2

Use the significance level of 0.01 to test the claim of the researcher.

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orchestra answered 1 year ago

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