Pearson eText for Essentials of Statistics -- Instant Access (Pearson+)
Pearson eText for Essentials of Statistics -- Instant Access (Pearson+)
6th Edition
ISBN: 9780137517374
Author: Mario Triola
Publisher: PEARSON+
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Concept explainers

Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of tw…
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency o…
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow compar…
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Chapter 2.1, Problem 24BSC

Categorical Data. In Exercises 23 and 24, use the given categorical data to construct the relative frequency distribution.

24. Births Natural births randomly selected from four hospitals in New York State occurred on the days of the week (in the order of Monday through Sunday) with these frequencies: 52, 66, 72, 57, 57, 43, 53. Does it appear that such births occur on the days of the week with equal frequency?

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Chapter 2 Solutions

Pearson eText for Essentials of Statistics -- Instant Access (Pearson+)

Ch. 2.1 - McDonalds Dinner Service Times Refer 10 the...Ch. 2.1 - McDonalds Dinner Service Times Refer to the...Ch. 2.1 - Relative Frequency Distribution Use percentages to...Ch. 2.1 - Whats Wrong? Heights of adult males are known to...Ch. 2.1 - In Exercise 58, identify the class width, class...Ch. 2.1 - In Exercises 58, identify the class width, class...Ch. 2.1 - In Exercises 58, identify the class width, class...Ch. 2.1 - In Exercises 58, identify the class width, class...Ch. 2.1 - Normal Distributions. In Exercises 9 and 10, using...Ch. 2.1 - Normal Distributions. In Exercises 9 and 10, using...
Ch. 2.1 - Constructing Frequency Distributions. In Exercises...Ch. 2.1 - Constructing Frequency Distributions. In Exercises...Ch. 2.1 - Constructing Frequency Distributions. In Exercises...Ch. 2.1 - Burger King Dinner Service Times Refer to Data Set...Ch. 2.1 - Wendys Lunch Service Times Refer to Data Set 25...Ch. 2.1 - Wendys Dinner Service Times Refer to Data Set 25...Ch. 2.1 - Analysis of Last Digits Heights of statistics...Ch. 2.1 - Analysis of Last Digits Weights of respondents...Ch. 2.1 - Oscar Winners Construct one table (similar to...Ch. 2.1 - Blood Platelet Counts Construct one table (similar...Ch. 2.1 - Cumulative Frequency Distributions. In Exercises...Ch. 2.1 - Cumulative Frequency Distributions. In Exercises...Ch. 2.1 - Categorical Data. In Exercises 23 and 24, use the...Ch. 2.1 - Categorical Data. In Exercises 23 and 24, use the...Ch. 2.2 - Heights Heights of adult males are normally...Ch. 2.2 - More Heights The population of heights of adult...Ch. 2.2 - Blood Platelet Counts Listed below are blood...Ch. 2.2 - Blood Platelet Counts If we collect a sample of...Ch. 2.2 - Interpreting a Histogram. In Exercises 58, answer...Ch. 2.2 - Prob. 6BSCCh. 2.2 - Interpreting a Histogram. In Exercises 58, answer...Ch. 2.2 - Prob. 8BSCCh. 2.2 - Constructing Histograms. In Exercises 9-16,...Ch. 2.2 - Constructing Histograms. In Exercises 9-16,...Ch. 2.2 - Burger King Lunch Service Times Use the frequency...Ch. 2.2 - Burger King Dinner Service Times Use the frequency...Ch. 2.2 - Wendys Lunch Service Times Use the frequency...Ch. 2.2 - Wendys Dinner Service Times Use the frequency...Ch. 2.2 - Analysis of Last Digits Use the frequency...Ch. 2.2 - Analysis of Last Digits Use the frequency...Ch. 2.2 - Back-to-Back Relative Frequency Histograms When...Ch. 2.2 - Interpreting Normal Quantile Plots Which of the...Ch. 2.3 - Body Temperatures Listed below are body...Ch. 2.3 - Voluntary Response Data If we have a large...Ch. 2.3 - Ethics There are data showing that smoking is...Ch. 2.3 - CVDOT Section 2-1 introduced important...Ch. 2.3 - Dotplots. In Exercises 5 and 6, construct the...Ch. 2.3 - Diastolic Blood Pressure Listed below are...Ch. 2.3 - Stem plots. In Exercises 7 and 8, construct the...Ch. 2.3 - Stemplots. In Exercises 7 and 8, construct the...Ch. 2.3 - Time-Series Graphs. In Exercises 9 and 10,...Ch. 2.3 - Time-Series Graphs. In Exercises 9 and 10,...Ch. 2.3 - Pareto Charts. In Exercises 11 and 12 construct...Ch. 2.3 - Pareto Charts. In Exercises 11 and 12 construct...Ch. 2.3 - Pie Charts. In Exercises 13 and 14, construct the...Ch. 2.3 - Pie Charts. In Exercises 13 and 14, construct the...Ch. 2.3 - Frequency Polygon. In Exercises 15 and 16,...Ch. 2.3 - Frequency Polygon. In Exercises 15 and 16,...Ch. 2.3 - Self-Driving Vehicles In a survey of adults,...Ch. 2.3 - Deceptive Graphs. In Exercises 17-20, identify how...Ch. 2.3 - Deceptive Graphs. In Exercises 17-20, identify how...Ch. 2.3 - Deceptive Graphs. In Exercises 17-20, identify how...Ch. 2.3 - Expanded Stemplots A stemplot can be condensed by...Ch. 2.4 - Linear Correlation In this section we use r to...Ch. 2.4 - Causation A study has shown that there is a...Ch. 2.4 - Scanerplot What is a scatterplot and how does it...Ch. 2.4 - Estimating r For each of the following, estimate...Ch. 2.4 - Scatterplot. In Exercises 5-8, use the sample data...Ch. 2.4 - Scatterplot. In Exercises 5-8, use the sample data...Ch. 2.4 - Scatterplot. In Exercises 5-8, use the sample data...Ch. 2.4 - Scatterplot. In Exercises 5-8, use the sample data...Ch. 2.4 - Linear Correlation Coefficient In Exercises 9-12,...Ch. 2.4 - Linear Correlation Coefficient In Exercises 9-12,...Ch. 2.4 - Linear Correlation Coefficient In Exercises 9-12,...Ch. 2.4 - Using the data from Exercise 8 Heights of Fathers...Ch. 2.4 - Prob. 13BBCh. 2.4 - P-Values In Exercises 13-16, write a statement...Ch. 2.4 - P-Values In Exercises 13-16, write a statement...Ch. 2.4 - P-Values In Exercises 13-16, write a statement...Ch. 2 - Cookies Refer to the accompanying frequency...Ch. 2 - Cookies Using the same frequency distribution from...Ch. 2 - Cookies Using the same frequency distribution from...Ch. 2 - Cookies A stemplot of the same cookies summarized...Ch. 2 - Computers As a quality control manager at Texas...Ch. 2 - Distribution of Wealth In recent years, there has...Ch. 2 - Health Test In an investigation of a relationship...Ch. 2 - Lottery In Floridas Play 4 lottery game, four...Ch. 2 - Seatbelts The Beams Seatbelts company...Ch. 2 - Seatbelts A histogram is to be constructed from...Ch. 2 - Frequency Distribution of Body Temperatures...Ch. 2 - Histogram of Body Temperatures Construct the...Ch. 2 - Dotplot of Body Temperatures Construct a dotplot...Ch. 2 - Stemplot of Body Temperatures Construct a stemplot...Ch. 2 - Body Temperatures Listed below are the...Ch. 2 - Environment a. After collecting the average (mean)...Ch. 2 - Its Like Time Do This Exercise In a Marist survey...Ch. 2 - Whatever Use the same data from Exercise 7 to...Ch. 2 - In Exercises 1-6 refer to the data below, which...Ch. 2 - Frequency Distribution For the frequency...Ch. 2 - In Exercises 1-6, refer to the data below, which...Ch. 2 - In Exercises 1-6, refer to the data below, which...Ch. 2 - In Exercises 1-6, refer to the data below, which...Ch. 2 - Data Type a. The listed playing times are all...

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