Essentials of Statistics for The Behavioral Sciences (MindTap Course List)
9th Edition
ISBN: 9781337098120
Author: Frederick J Gravetter, Larry B. Wallnau, Lori-Ann B. Forzano
Publisher: Cengage Learning
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Chapter 11.3, Problem 2LC
To determine
The correct statement of the alternate hypothesis.
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Students have asked these similar questions
Client
1
Weight before
diet (pounds)
Weight after
diet (pounds)
128
120
2
131
123
3
140
141
4
178
170
5
121
118
6
136
136
7
118
121
8
136
127
Client
1
Weight before
diet (pounds)
Weight after
diet (pounds)
128
120
2
131
123
3
140
141
4
178
170
5
121
118
6
136
136
7
118
121
8
136
127
a) Determine the mean change in patient weight from before to after the
diet (after – before). What is the 95% confidence interval of this mean
difference?
In order to find probability, you can use this formula in Microsoft Excel:
The best way to understand and solve these problems is by first drawing a bell curve and marking key points such as x, the mean, and the areas of interest. Once marked on the bell curve, figure out what calculations are needed to find the area of interest.
=NORM.DIST(x, Mean, Standard Dev., TRUE).
When the question mentions “greater than” you may have to subtract your answer from 1.
When the question mentions “between (two values)”, you need to do separate calculation for both values and then subtract their results to get the answer.
1.
Compute the probability of a value between 44.0 and 55.0.
(The question requires finding probability value between 44 and 55. Solve it in 3 steps.
In the first step, use the above formula and x = 44, calculate probability value.
In the second step repeat the first step with the only difference that x=55.
In the third step, subtract the answer of the first part from the…
Chapter 11 Solutions
Essentials of Statistics for The Behavioral Sciences (MindTap Course List)
Ch. 11.1 - In a repeated-measures study, the same group of...Ch. 11.1 - A researcher conducts a research study comparing...Ch. 11.1 - For an experiment comparing two treatment...Ch. 11.2 - What is the mean for the difference scores for the...Ch. 11.2 - Which of the following is the correct statement of...Ch. 11.2 - Which of the following accurately describes the...Ch. 11.2 - Prob. 4LCCh. 11.3 - A researcher conducts a repeated-measures study...Ch. 11.3 - Prob. 2LCCh. 11.4 - Prob. 1LC
Ch. 11.4 - Prob. 2LCCh. 11.4 - A research report describing the results from a...Ch. 11.4 - Prob. 4LCCh. 11.4 - Prob. 5LCCh. 11.5 - Which of the following possibilities is a concern...Ch. 11.5 - For which of the following situations would an...Ch. 11.5 - Prob. 3LCCh. 11 - For the each of the following studies determine...Ch. 11 - What is the defining characteristic of a...Ch. 11 - A researcher conducts an experiment comparing two...Ch. 11 - A repeated-measures and an independent-measures...Ch. 11 - A sample of n = 16 individuals participates in a...Ch. 11 - Resenhoeft, Villa, and Wiseman (2008) conducted a...Ch. 11 - The following data are from a repeated-measures...Ch. 11 - When you get a surprisingly low price on a product...Ch. 11 - Masculine-themed words (such us competitive,...Ch. 11 - The stimulant Ritalin has been shown to increase...Ch. 11 - College athletes, especially males, are often...Ch. 11 - Callahan (2009) demonstrated that tai chi can...Ch. 11 - Research results indicate that physically...Ch. 11 - There is some evidence suggesting that you are...Ch. 11 - In Example 8.1 (page 200) we discussed a research...Ch. 11 - Solve the following problems. a. A...Ch. 11 - Solve the following problems. a. A...Ch. 11 - A sample of difference stores from a...Ch. 11 - Participants enter a research study with unique...Ch. 11 - Swearing is a common, almost reflexive, response...Ch. 11 - The previous problem demonstrates that removing...Ch. 11 - Explain the difference between a matched-subjects...Ch. 11 - A researcher conducts an experiment comparing two...Ch. 11 - A repeated-measures, a matched-subjects, and an...
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