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PSY 202 Elementary Statistics

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Elementary Statistics Questions & Answers

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Elementary Statistics Documents

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Textbook Exercises

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Statistics for the Behavioral Sciences
Ch 1, Section 1.1 Statistics, Science, and Observations, Exercise 1

A researcher is interested in the sleeping habits of American college students. A group of 50...

 Statistics for the Behavioral Sciences
Ch 2, Section 2.1 Frequency Distributions and Frequency Distribution Tables, Exercise 1

For the following frequency distribution, how many individuals had a score of X=2? X f 5 1 4 2 3 4...

 Statistics for the Behavioral Sciences
Ch 3, Section 3.2 The Mean, Exercise 1

What is the mean for the following sample of scores? Scores: 1 to 2, 5, 4 a. 12 b. 6 c. 4 d. 3

 Statistics for the Behavioral Sciences
Ch 4, Section 4.1 Introduction to Variability, Exercise 1

Which of the following sets of scores has the greatest variability? a. 2 to 3, 7, 12 b. 13, 15 to...

 Statistics for the Behavioral Sciences
Ch 5, Section 5.1 Introduction to z-Scores, Exercise 1

If your exam score is X=60, which set of parameters would give you the best grade? a. \mathsf{\mu...

 Statistics for the Behavioral Sciences
Ch 6, Section 6.1 Introduction to Probability, Exercise 1

A survey of the students in a psychology class revealed that there were 19 females and 8 males. Of...

 Statistics for the Behavioral Sciences
Ch 7, Section 7.1 Samples, Populations, and the Distriution of Sample Means, Exercise 1

If all the possible random samples of size n=5 are selected from a population with μ=50 and σ=10...

 Statistics for the Behavioral Sciences
Ch 8, Section 8.1 The Logic of Hypothesis Testing, Exercise 1

A sample of n=16 individuals is selected from a population with μ=40 and σ=12, and a treatment is...

 Statistics for the Behavioral Sciences
Ch 9, Section 9.1 The t Statistic: An Alternative to z, Exercise 1

Which of the following is a fundamental difference between the t statistic and a z -score? a. The t...

 Statistics for the Behavioral Sciences

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