Elementary Statistics: Picturing the World (7th Edition)
7th Edition
ISBN: 9780134683744
Author: Larson
Publisher: PEARSON
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Chapter 1.3, Problem 1A
To determine
To identify: The population and sample.
To describe: The sample data.
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Bob and Teresa each collect their own samples to test the same hypothesis. Bob’s p-value turns out to be 0.05, and Teresa’s turns out to be 0.01.
Why don’t Bob and Teresa get the same p-values?
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Review a classmate's Main Post.
1. State if you agree or disagree with the choices made for additional analysis
that can be done beyond the frequency table.
2. Choose a measure of central tendency (mean, median, mode) that you
would like to compute with the data beyond the frequency table. Complete
either a or b below.
a. Explain how that analysis can help you understand the data better.
b. If you are currently unable to do that analysis, what do you think you
could do to make it possible? If you do not think you can do
anything, explain why it is not possible.
0|0|0|0
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Consider the time series X₁ and Y₁ = (I – B)² (I – B³)Xt. What transformations were
performed on Xt to obtain Yt?
seasonal difference of order 2
simple difference of order 5
seasonal difference of order 1
seasonal difference of order 5
simple difference of order 2
Chapter 1 Solutions
Elementary Statistics: Picturing the World (7th Edition)
Ch. 1.1 - In a survey of 1501 ninth to twelfth graders in...Ch. 1.1 - Determine whether each number describes a...Ch. 1.1 - A study of 1000 U.S. adults found that when they...Ch. 1.1 - How is a sample related to a population?Ch. 1.1 - Why is a sample used more often than a population?Ch. 1.1 - What is the difference between a parameter and a...Ch. 1.1 - What are the two main branches of statistics?Ch. 1.1 - True or False? In Exercises 510, determine whether...Ch. 1.1 - True or False? In Exercises 510, determine whether...Ch. 1.1 - True or False? In Exercises 510, determine whether...
Ch. 1.1 - True or False? In Exercises 510, determine whether...Ch. 1.1 - True or False? In Exercises 510, determine whether...Ch. 1.1 - True or False? In Exercises 510, determine whether...Ch. 1.1 - Classifying a Data Set In Exercises 1120,...Ch. 1.1 - Classifying a Data Set In Exercises 1120,...Ch. 1.1 - Classifying a Data Set In Exercises 1120,...Ch. 1.1 - Classifying a Data Set In Exercises 1120,...Ch. 1.1 - Classifying a Data Set In Exercises 1120,...Ch. 1.1 - Classifying a Data Set In Exercises 1120,...Ch. 1.1 - Classifying a Data Set In Exercises 1120,...Ch. 1.1 - Classifying a Data Set In Exercises 1120,...Ch. 1.1 - Classifying a Data Set In Exercises 1120,...Ch. 1.1 - Classifying a Data Set In Exercises 1120,...Ch. 1.1 - Graphical Analysis In Exercises 2124, use the Venn...Ch. 1.1 - Graphical Analysis In Exercises 2124, use the Venn...Ch. 1.1 - Graphical Analysis In Exercises 2124, use the Venn...Ch. 1.1 - Graphical Analysis In Exercises 2124, use the Venn...Ch. 1.1 - Identifying Data Sets In Exercises 2534, identify...Ch. 1.1 - Identifying Data Sets In Exercises 2534, identify...Ch. 1.1 - Identifying Data Sets In Exercises 2534, identify...Ch. 1.1 - Identifying Data Sets In Exercises 2534, identify...Ch. 1.1 - Identifying Data Sets In Exercises 2534, identify...Ch. 1.1 - Identifying Data Sets In Exercises 2534, identify...Ch. 1.1 - Identifying Data Sets In Exercises 2534, identify...Ch. 1.1 - Identifying Data Sets In Exercises 2534, identify...Ch. 1.1 - Identifying Data Sets In Exercises 2534, identify...Ch. 1.1 - Identifying Data Sets In Exercises 2534, identify...Ch. 1.1 - Distinguishing Between a Parameter and a Statistic...Ch. 1.1 - Distinguishing Between a Parameter and a Statistic...Ch. 1.1 - Distinguishing Between a Parameter and a Statistic...Ch. 1.1 - Distinguishing Between a Parameter and a Statistic...Ch. 1.1 - Distinguishing Between a Parameter and a Statistic...Ch. 1.1 - Distinguishing Between a Parameter and a Statistic...Ch. 1.1 - Distinguishing Between a Parameter and a Statistic...Ch. 1.1 - Distinguishing Between a Parameter and a Statistic...Ch. 1.1 - Descriptive and Inferential Statistics Which part...Ch. 1.1 - Descriptive and Inferential Statistics Which part...Ch. 1.1 - Exercise and Cognitive Ability A study of 876...Ch. 1.1 - Increase in Obesity Rates A study shows that the...Ch. 1.1 - Sleep and Student Achievement A study shows the...Ch. 1.2 - The populations of several U.S. cities are shown...Ch. 1.2 - For each data set. determine whether the data are...Ch. 1.2 - For each data set, determine whether the data are...Ch. 1.2 - Name each level of measurement for which data can...Ch. 1.2 - Name each level of measurement for which data can...Ch. 1.2 - True or False? In Exercises 36, determine whether...Ch. 1.2 - True or False? In Exercises 36, determine whether...Ch. 1.2 - True or False? In Exercises 36, determine whether...Ch. 1.2 - True or False? In Exercises 36, determine whether...Ch. 1.2 - Classifying Data by Type In Exercises 714,...Ch. 1.2 - Classifying Data by Type In Exercises 714,...Ch. 1.2 - Classifying Data by Type In Exercises 714,...Ch. 1.2 - Classifying Data by Type In Exercises 714,...Ch. 1.2 - Classifying Data by Type In Exercises 714,...Ch. 1.2 - Classifying Data by Type In Exercises 714,...Ch. 1.2 - Classifying Data by Type In Exercises 714,...Ch. 1.2 - Classifying Data by Type In Exercises 714,...Ch. 1.2 - Classifying Data By Level In Exercises 1520,...Ch. 1.2 - Classifying Data By Level In Exercises 1520,...Ch. 1.2 - Classifying Data By Level In Exercises 1520,...Ch. 1.2 - Classifying Data By Level In Exercises 1520,...Ch. 1.2 - Classifying Data By Level In Exercises 1520,...Ch. 1.2 - Classifying Data By Level In Exercises 1520,...Ch. 1.2 - Graphical Analysis In Exercises 2124, determine...Ch. 1.2 - Graphical Analysis In Exercises 2124, determine...Ch. 1.2 - Graphical Analysis In Exercises 2124, determine...Ch. 1.2 - Graphical Analysis In Exercises 2124, determine...Ch. 1.2 - The items below appear on a physician's intake...Ch. 1.2 - Graphical Analysis In Exercises 2124, determine...Ch. 1.2 - Classifying Data by Type and Level In Exercises...Ch. 1.2 - Classifying Data by Type and Level In Exercises...Ch. 1.2 - Classifying Data by Type and Level In Exercises...Ch. 1.2 - Classifying Data by Type and Level In Exercises...Ch. 1.2 - Classifying Data by Type and Level In Exercises...Ch. 1.2 - Classifying Data by Type and Level In Exercises...Ch. 1.2 - Extending Concepts 33. Writing What is an inherent...Ch. 1.2 - Describe two examples of data sets for each of the...Ch. 1.2 - For more than 50 years. The Harris Poll has...Ch. 1.2 - Reputations of 10 Companies in the U.S. (Source:...Ch. 1.2 - Reputations of 10 Companies in the U.S. (Source:...Ch. 1.2 - Reputations of 10 Companies in the U.S. (Source:...Ch. 1.2 - Reputations of 10 Companies in the U.S. (Source:...Ch. 1.2 - For more than 50 years. The Harris Poll has...Ch. 1.3 - The Pennsylvania Game Commission conducted a study...Ch. 1.3 - Prob. 2TYCh. 1.3 - A company employs 79 people. Choose a simple...Ch. 1.3 - You want to determine the opinions of students...Ch. 1.3 - What is the difference between an observational...Ch. 1.3 - What is the difference between a census and a...Ch. 1.3 - What is the difference between a random sample and...Ch. 1.3 - What is replication in an experiment? Why is...Ch. 1.3 - True or False? In Exercises 510, determine whether...Ch. 1.3 - True or False? In Exercises 510, determine whether...Ch. 1.3 - True or False? In Exercises 510, determine whether...Ch. 1.3 - True or False? In Exercises 510, determine whether...Ch. 1.3 - True or False? In Exercises 510, determine whether...Ch. 1.3 - True or False? In Exercises 510, determine whether...Ch. 1.3 - Distinguishing Between an Observational Study and...Ch. 1.3 - Distinguishing Between an Observational Study and...Ch. 1.3 - Distinguishing Between an Observational Study and...Ch. 1.3 - Distinguishing Between an Observational Study and...Ch. 1.3 - Random Number Table Use the sixth row of Table 1...Ch. 1.3 - Random Number Table Use the tenth row of Table 1...Ch. 1.3 - Random Numbers In Exercises 17 and 18, use...Ch. 1.3 - Random Numbers In Exercises 17 and 18, use...Ch. 1.3 - Allergy Drug A pharmaceutical company wants to...Ch. 1.3 - Dietary Supplement Researchers in Germany tested...Ch. 1.3 - Sleep Deprivation A researcher wants to study the...Ch. 1.3 - Using a Simple Random Sample Volunteers for an...Ch. 1.3 - Identifying Sampling Techniques In Exercises 2328,...Ch. 1.3 - Identifying Sampling Techniques In Exercises 2328,...Ch. 1.3 - Identifying Sampling Techniques In Exercises 2328,...Ch. 1.3 - Identifying Sampling Techniques In Exercises 2328,...Ch. 1.3 - Identifying Sampling Techniques In Exercises 2328,...Ch. 1.3 - Identifying Sampling Techniques In Exercises 2328,...Ch. 1.3 - Choosing Between a Census and a Sampling In...Ch. 1.3 - Choosing Between a Census and a Sampling In...Ch. 1.3 - Recognizing a Biased Question In Exercises 3134,...Ch. 1.3 - Recognizing a Biased Question In Exercises 3134,...Ch. 1.3 - Recognizing a Biased Question In Exercises 3134,...Ch. 1.3 - Recognizing a Biased Question In Exercises 3134,...Ch. 1.3 - Open and Closed Questions Two types of survey...Ch. 1.3 - Natural Experiments Observational studies are...Ch. 1.3 - Prob. 1ACh. 1.3 - In Exercises 14, identify the population and the...Ch. 1 - In Exercises 14, identify the population and the...Ch. 1 - In Exercises 14, identify the population and the...Ch. 1 - In Exercises 58, determine whether the number...Ch. 1 - In Exercises 58, determine whether the number...Ch. 1 - In Exercises 58, determine whether the number...Ch. 1 - In Exercises 58, determine whether the number...Ch. 1 - Which part of the survey described in Exercise 3...Ch. 1 - Which part of the survey described in Exercise 4...Ch. 1 - In Exercises 1114, determine whether the data are...Ch. 1 - In Exercises 1114, determine whether the data are...Ch. 1 - In Exercises 1114, determine whether the data are...Ch. 1 - In Exercises 1114, determine whether the data are...Ch. 1 - In Exercises 1518, determine the level of...Ch. 1 - In Exercises 1518, determine the level of...Ch. 1 - In Exercises 1518, determine the level of...Ch. 1 - In Exercises 1518, determine the level of...Ch. 1 - In Exercises 19 and 20, determine whether the...Ch. 1 - In Exercises 19 and 20, determine whether the...Ch. 1 - In Exercises 21 and 22, two hundred students...Ch. 1 - In Exercises 21 and 22, two hundred students...Ch. 1 - Identifying Sampling Techniques In Exercises 2328,...Ch. 1 - Identifying Sampling Techniques In Exercises 2328,...Ch. 1 - Identifying Sampling Techniques In Exercises 2328,...Ch. 1 - Identifying Sampling Techniques In Exercises 2328,...Ch. 1 - Identifying Sampling Techniques In Exercises 2328,...Ch. 1 - Identifying Sampling Techniques In Exercises 2328,...Ch. 1 - You want to know the favorite spring break...Ch. 1 - A study of the dietary habits of 359,264 Korean...Ch. 1 - Determine whether each number describes a...Ch. 1 - Determine whether the data are qualitative or...Ch. 1 - Determine the level of measurement of the data...Ch. 1 - Determine whether the study is an observational...Ch. 1 - An experiment is performed to test the effects of...Ch. 1 - Identify the sampling technique used in each...Ch. 1 - Which technique used in Exercise 7 could lead to a...Ch. 1 - Determine whether you would take a census or use a...Ch. 1 - Determine whether each number describes a...Ch. 1 - Specify the minimum, maximum, and number of...Ch. 1 - Use the applet to repeat Example 3 on page 21....Ch. 1 - Identify the sampling technique used, and discuss...Ch. 1 - Determine whether the data are qualitative or...Ch. 1 - Determine whether the survey question is biased....Ch. 1 - Researchers surveyed 19,183 U.S. physicians,...Ch. 1 - When do you think smartphone payments will replace...Ch. 1 - Data Classification (a) What type of data do you...Ch. 1 - How They Did It When The Harris Poll did a similar...Ch. 1 - The SEC (Securities and Exchange Commission) is...Ch. 1 - A quality control department is testing 25...Ch. 1 - Consider the population of ten digits: 0, 1, 2, 3,...Ch. 1 - Consider the population of 41 whole numbers from 0...Ch. 1 - Use random numbers to simulate rolling a six-sided...Ch. 1 - Prob. 6TCh. 1 - Use random numbers to simulate tossing a coin 100...Ch. 1 - You tossed a coin 100 times and got 77 heads and...Ch. 1 - A political analyst would like to survey a sample...
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- Calculate the 90% confidence interval for the population mean difference using the data in the attached image. I need to see where I went wrong.arrow_forwardMicrosoft Excel snapshot for random sampling: Also note the formula used for the last column 02 x✓ fx =INDEX(5852:58551, RANK(C2, $C$2:$C$51)) A B 1 No. States 2 1 ALABAMA Rand No. 0.925957526 3 2 ALASKA 0.372999976 4 3 ARIZONA 0.941323044 5 4 ARKANSAS 0.071266381 Random Sample CALIFORNIA NORTH CAROLINA ARKANSAS WASHINGTON G7 Microsoft Excel snapshot for systematic sampling: xfx INDEX(SD52:50551, F7) A B E F G 1 No. States Rand No. Random Sample population 50 2 1 ALABAMA 0.5296685 NEW HAMPSHIRE sample 10 3 2 ALASKA 0.4493186 OKLAHOMA k 5 4 3 ARIZONA 0.707914 KANSAS 5 4 ARKANSAS 0.4831379 NORTH DAKOTA 6 5 CALIFORNIA 0.7277162 INDIANA Random Sample Sample Name 7 6 COLORADO 0.5865002 MISSISSIPPI 8 7:ONNECTICU 0.7640596 ILLINOIS 9 8 DELAWARE 0.5783029 MISSOURI 525 10 15 INDIANA MARYLAND COLORADOarrow_forwardSuppose the Internal Revenue Service reported that the mean tax refund for the year 2022 was $3401. Assume the standard deviation is $82.5 and that the amounts refunded follow a normal probability distribution. Solve the following three parts? (For the answer to question 14, 15, and 16, start with making a bell curve. Identify on the bell curve where is mean, X, and area(s) to be determined. 1.What percent of the refunds are more than $3,500? 2. What percent of the refunds are more than $3500 but less than $3579? 3. What percent of the refunds are more than $3325 but less than $3579?arrow_forward
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