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Terms in this set (33)An real estate agent is comparing the average price for 3-bedroom, 2-bath homes in Chicago and Denver. Samples from each city provide the following data: Sets with similar termsOther sets by this creatorVerified questions
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STATISTICS Verified answer Other Quizlet setsHow do you find the test statistic for a paired tPaired T-Test Formula
In the formula for a paired t-test, this difference is notated as d. The formula of the paired t-test is defined as the sum of the differences of each pair divided by the square root of n times the sum of the differences squared minus the sum of the squared differences, overall n-1.
What is the formula to calculate a test statistic?The formula to calculate the test statistic comparing two population means is, Z= ( x - y )/√(σx2/n1 + σy2/n2). In order to calculate the statistic, we must calculate the sample means ( x and y ) and sample standard deviations (σx and σy) for each sample separately. n1 and n2 represent the two sample sizes.
What is the test statistic for the tA t-test is a statistical test that compares the means of two samples. It is used in hypothesis testing, with a null hypothesis that the difference in group means is zero and an alternate hypothesis that the difference in group means is different from zero. What does a t-test measure?
What is an example of a paired tA paired t-test is used when we are interested in the difference between two variables for the same subject. Often the two variables are separated by time. For example, in the Dixon and Massey data set we have cholesterol levels in 1952 and cholesterol levels in 1962 for each subject.
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Which of the following is the formula for the test statistic used in a test of paired samples?
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