Exam 9: Hypothesis Testing Using the Two-Sample T-Test

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Eighteen overweight volunteers weighed themselves before and after a two-week diet.The appropriate design for testing the significance of the difference between the means is

(Multiple Choice)

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Question 41

Suppose at a given high school, juniors and seniors who participate in a certain sport are paired according to their athletic ability and then comparisons of their GPA are made.What type of research design is this and why?

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Question 42

If $S_{D}^{2}$ $\sum D$ = 20, N = 10, and = 4, what is $t_{o b t}$ when $H_{0}: \mu_{D}=0$ and $H_{a}: \mu_{D} \neq 0$ ?

(Short Answer)

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Question 43

What does the homogeneity of variance assumption state?

(Multiple Choice)

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Question 44

At a card players' club, the poker players had a contest with the blackjack players to see who could win the most money.The appropriate design for testing the significance of the difference between the means is

(Multiple Choice)

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Question 45

Which of the following is not one of the assumptions of the t-test for independent samples?

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Question 46

What are the degrees of freedom for an independent-samples t-test using one sample with n = 13 and one sample with n = 15?

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Question 47

How is the proportion of variance accounted for calculated?

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Question 48

How is the null hypothesis of the independent-samples t-test verbalized?

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Question 49

Showing 41 - 49 of 49

Eighteen overweight volunteers weighed themselves before and after a two-week diet.The appropriate design for testing the significance of the difference between the means is

Suppose at a given high school, juniors and seniors who participate in a certain sport are paired according to their athletic ability and then comparisons of their GPA are made.What type of research design is this and why?

If $S_{D}^{2}$ $\sum D$ = 20, N = 10, and = 4, what is $t_{o b t}$ when $H_{0}: \mu_{D}=0$ and $H_{a}: \mu_{D} \neq 0$ ?

What does the homogeneity of variance assumption state?

At a card players' club, the poker players had a contest with the blackjack players to see who could win the most money.The appropriate design for testing the significance of the difference between the means is

Which of the following is not one of the assumptions of the t-test for independent samples?

What are the degrees of freedom for an independent-samples t-test using one sample with n = 13 and one sample with n = 15?

How is the proportion of variance accounted for calculated?

How is the null hypothesis of the independent-samples t-test verbalized?

Introduction to Statistics and Research

Creating and Using Frequency Distributions

Summarizing Scores With Measures of Central Tendency

Summarizing Scores With Measures of Variability

Describing Data With Z-Scores and the Normal Curve

Using Probability to Make Decisions About Data

Overview of Statistical Hypothesis Testing: the Z-Test

Hypothesis Testing Using the One-Sample T-Test

Describing Relationships Using Correlation and Regression

Hypothesis Testing Using the One-Way Analysis of Variance

Understanding the Two-Way Analysis of Variance

Chi Square and Nonparametric Procedures

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Exam 9: Hypothesis Testing Using the Two-Sample T-Test

Eighteen overweight volunteers weighed themselves before and after a two-week diet.The appropriate design for testing the significance of the difference between the means is

Suppose at a given high school, juniors and seniors who participate in a certain sport are paired according to their athletic ability and then comparisons of their GPA are made.What type of research design is this and why?

If SD2S_{D}^{2}SD2​ ∑D\sum D∑D = 20, N = 10, and = 4, what is tobtt_{o b t}tobt​ when H0:μD=0H_{0}: \mu_{D}=0H0​:μD​=0 and Ha:μD≠0H_{a}: \mu_{D} \neq 0Ha​:μD​=0 ?

What does the homogeneity of variance assumption state?

At a card players' club, the poker players had a contest with the blackjack players to see who could win the most money.The appropriate design for testing the significance of the difference between the means is

Which of the following is not one of the assumptions of the t-test for independent samples?

What are the degrees of freedom for an independent-samples t-test using one sample with n = 13 and one sample with n = 15?

How is the proportion of variance accounted for calculated?

How is the null hypothesis of the independent-samples t-test verbalized?

Introduction to Statistics and Research

Creating and Using Frequency Distributions

Summarizing Scores With Measures of Central Tendency

Summarizing Scores With Measures of Variability

Describing Data With Z-Scores and the Normal Curve

Using Probability to Make Decisions About Data

Overview of Statistical Hypothesis Testing: the Z-Test

Hypothesis Testing Using the One-Sample T-Test

Describing Relationships Using Correlation and Regression

Hypothesis Testing Using the One-Way Analysis of Variance

Understanding the Two-Way Analysis of Variance

Chi Square and Nonparametric Procedures

Filters

If $S_{D}^{2}$ $\sum D$ = 20, N = 10, and = 4, what is $t_{o b t}$ when $H_{0}: \mu_{D}=0$ and $H_{a}: \mu_{D} \neq 0$ ?