A researcher wishes to determine whether the blood pressure of vegetarians is, on av of nonvegetarians. Independent simple random samples of 85 vegetarians and 75 no size, mean and standard deviation of each group was recorded. Test the claim that th vegetarians is lower than the mean systolic blood pressure for nonvegetarians. Also a deviations are equal(o01=002), so that the standard error of the difference between r sample variances.

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A researcher wishes to determine whether the blood pressure of vegetarians is, on average, lower than the blood pressure
of nonvegetarians. Independent simple random samples of 85 vegetarians and 75 nonvegetarians were obtained and the
size, mean and standard deviation of each group was recorded. Test the claim that the main systolic blood pressure for
vegetarians is lower than the mean systolic blood pressure for nonvegetarians. Also assumed that the population standard
deviations are equal(o01=002), so that the standard error of the difference between means is obtained by pooling the
sample variances.
How many populations?
• 2
1
What is the parameter?
• Variance
• Difference between Means
• Proportion
• Mean
• Standard Deviation
What is the test statistic?
Transcribed Image Text:A researcher wishes to determine whether the blood pressure of vegetarians is, on average, lower than the blood pressure of nonvegetarians. Independent simple random samples of 85 vegetarians and 75 nonvegetarians were obtained and the size, mean and standard deviation of each group was recorded. Test the claim that the main systolic blood pressure for vegetarians is lower than the mean systolic blood pressure for nonvegetarians. Also assumed that the population standard deviations are equal(o01=002), so that the standard error of the difference between means is obtained by pooling the sample variances. How many populations? • 2 1 What is the parameter? • Variance • Difference between Means • Proportion • Mean • Standard Deviation What is the test statistic?
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