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zzz [600]
1 year ago
10

an educational psychologist is interested in whether test scores improve between 7th and 8th grade. she recruits a sample of 100

students and finds test score averages of 50 and 53 in 7th and 8th grade, respectively. the standard error for the paired-samples t-statistic is 2. which of the following interpretations is true regarding the standard error?
Social Studies
1 answer:
melamori03 [73]1 year ago
6 0

An educational psychologist is interested in whether math test scores improve between 7th and 8th grade. She recruits a sample of 100 students and uses a paired-samples t-test to analyze the data. The result is <u>the difference between the average 7th and 8th grade math scores is 0 in the population,</u> it is true regarding the standard error.

If there is a significant difference between the means of two groups and how they are related, a t-test is an inferential statistic that can be used to show it. When data sets, such as the one resulting from tossing a coin 100 times, have unknown variances and a normal distribution, t-tests are utilized. The t-test is a statistical procedure for evaluating hypotheses, and it assesses statistical significance by utilizing the degrees of freedom, the t-distribution values, and the t-statistic.

The average values of two data sets are compared using a t-test to ascertain whether they represent the same population. A sample of students from class A in the instances above and a sample of students from class B are unlikely to have the same mean and standard deviation. Similar to this, samples from the drug-prescribed group and those from the control group that received a placebo should have a somewhat different mean and standard deviation.

To know more about t-test

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