For each problem, compute the appropriate statistical test and report your conclusion. Your answer should include the following: a. Identify the appropriate statistical test. b. State the null hypothesis. c. Calculate the appropriate test statistic. Make sure to report the degrees of freedom for the statistical test (if appropriate). You must show your work to receive full credit. d. State your conclusions (use a two-tailed test with = .05 for all tests). e. Compute an effect size. 1. A teacher is concerned that the disruption caused by COVID-19 has affected math scores at her high school. She knows that scores on a standardized math test for high school students are normally distributed with mean= 50 and SD = 10. She administers the math test to a sample of 21 students at her high school and finds a mean of 44. Are the math scores of the students significantly different from the population?
For each problem, compute the appropriate statistical test and report your conclusion. Your answer should include the following:
a. Identify the appropriate statistical test.
b. State the null hypothesis.
c. Calculate the appropriate test statistic. Make sure to report the degrees of freedom for the statistical test (if appropriate). You must show your work to receive full credit.
d. State your conclusions (use a two-tailed test with = .05 for all tests).
e. Compute an effect size.
1. A teacher is concerned that the disruption caused by COVID-19 has affected math scores at her high school. She knows that scores on a standardized math test for high school students are
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