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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Textbook Question
Chapter 2, Problem 19P
A local fast-food restaurant normally sells coffee in three sizes- small, medium, and large-at three different prices. Recently they had a special sale, charging only SI for any sized coffee. During the sale, an employee recorded the number of each coffee size that was purchased on Wednesday morning. The following Wednesday, when prices had returned to normal, she again recorded the number of coffees sold for each Size. The results are shown in the following table.
| Regular Prices | |
| x | f |
| Large | 12 |
| Medium | 25 |
| Small | 31 |
| All Sizes for $1 | |
| X | f |
| Large | 41 |
| Medium | 27 |
| Small | 11 |
- a. What kind of graph would be appropriate for showing the distribution of coffee sizes for each of the two time periods?
- b. Draw the two frequency distribution graphs.
- c. Based on your two graphs, did the sale have an influence on the size of coffee that customers ordered?
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Chapter 2 Solutions
Essentials of Statistics for The Behavioral Sciences (MindTap Course List)
Ch. 2.1 - If the following scores are placed in a frequency...Ch. 2.1 - For the following distribution of quiz scores, how...Ch. 2.1 - For the following frequency distribution, what is...Ch. 2.2 - A set of scores ranges from a high of X = 96 to a...Ch. 2.2 - What is the lowest score in the following...Ch. 2.2 - Which of the following statements is false...Ch. 2.3 - Which of the following measuring scales are...Ch. 2.3 - A group of quiz, scares, is shown in a histogram...Ch. 2.3 - Instead of showing the actual number of...Ch. 2.3 - In a distribution with positive skew, where are...
Ch. 2 - Place the following set of n = 20 scores in a...Ch. 2 - Construct a frequency distribution table for the...Ch. 2 - Find each value requested for the distribution of...Ch. 2 - For each of the following, determine the interval...Ch. 2 - For the following scores, the smallest value is X ...Ch. 2 - The following scores are the ages for a random...Ch. 2 - What information is available about the scores in...Ch. 2 - Describe the difference in appearance between a...Ch. 2 - For the following set at scores: 1. Construct a...Ch. 2 - Draw a histogram for the distribution of scores...Ch. 2 - Draw a polygon for the distribution of scores...Ch. 2 - For the following set or scores: a. Organize the...Ch. 2 - Place the following scores in a frequency...Ch. 2 - A survey given to a sample of college students...Ch. 2 - Gaucher, Friesen, and Kay (2011) found that words...Ch. 2 - Find each or the followin.tt values for the...Ch. 2 - For the following set of scores: a. Construct a...Ch. 2 - A local fast-food restaurant normally sells coffee...Ch. 2 - Weinstein, McDermott, and Roediger (2010)...Ch. 2 - Recent research suggests that the amount of lime...
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