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# Inferential Statistics

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. Individual Assignment: Inferential Statistics
Â· 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 ExcelÂ® Analysis ToolPak? when necessary:

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

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

Â· 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?

Â· 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