# Inferential Statistics

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. Individual Assignment: Inferential Statistics

· Access the University of Phoenix Material, "Data for Inferential Practice Problems." Continue using the information from Inferential Practice Problems Part I and determine the following using the Excel® Analysis ToolPak? when necessary:

· Calculate all measures of central tendency for data that are interval or ratio in measurement

· Calculate the standard deviation for data that are interval or ratio in measurement

· Assume this is a sample of students, calculate a t-test that compares boys and girls on the number of absences (you can assume equal variances). Is there a significant difference in absences between gender?

· Assume this is a sample of students and that students receive an A grade if their score is 90 or above. Calculate a chi-square test to determine whether girls achieve more A grades than boys in math. Calculate a chi-square test to determine whether girls achieve more A grades than boys in reading

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