In: Statistics and Probability
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.