Elementary Statistics Using Excel (6th Edition)
6th Edition
ISBN: 9780134506623
Author: Mario F. Triola
Publisher: PEARSON
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Chapter 8.1, Problem 13BSC
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To identify: The test statistic.
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One hundred students were surveyed about their preference between dogs and cats. The following two-way table displays data for the sample of students who responded to the survey.
Preference
Male
Female
TOTAL
Prefers dogs
\[36\]
\[20\]
\[56\]
Prefers cats
\[10\]
\[26\]
\[36\]
No preference
\[2\]
\[6\]
\[8\]
TOTAL
\[48\]
\[52\]
\[100\]
problem 1
Find the probability that a randomly selected student prefers dogs.Enter your answer as a fraction or decimal.
\[P\left(\text{prefers dogs}\right)=\]
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Preference
Male
Female
TOTAL
Prefers dogs
\[\blueD{36}\]
\[\blueD{20}\]
\[\blueE{56}\]
Prefers cats
\[10\]
\[26\]
\[36\]
No preference
\[2\]
\[6\]
\[8\]
TOTAL
\[48\]
\[52\]
\[100\]
There were \[\blueE{56}\] students in the sample who preferred dogs out of \[100\] total students.
Business discuss
You have been hired as an intern to run analyses on the data and report the results back to Sarah; the five questions that Sarah needs you to address are given below.
Does there appear to be a positive or negative relationship between price and screen size? Use a scatter plot to examine the relationship.
Determine and interpret the correlation coefficient between the two variables. In your interpretation, discuss the direction of the relationship (positive, negative, or zero relationship). Also discuss the strength of the relationship.
Estimate the relationship between screen size and price using a simple linear regression model and interpret the estimated coefficients. (In your interpretation, tell the dollar amount by which price will change for each unit of increase in screen size).
Include the manufacturer dummy variable (Samsung=1, 0 otherwise) and estimate the relationship between screen size, price and manufacturer dummy as a multiple linear regression model.
Interpret the…
Chapter 8 Solutions
Elementary Statistics Using Excel (6th Edition)
Ch. 8.1 - 1. Vitamin C and Aspirin A bottle contains a label...Ch. 8.1 - 2. Estimates and Hypothesis Tests Data Set 3 “Body...Ch. 8.1 - 3. Mean Height of Men A formal hypothesis test is...Ch. 8.1 - 4. Interpreting P-value The Ericsson method is one...Ch. 8.1 - Identifying H0 and H1. In Exercises 5–8, do the...Ch. 8.1 - Identifying H0 and H1. In Exercises 5–8, do the...Ch. 8.1 - Prob. 7BSCCh. 8.1 - Identifying H0 and H1. In Exercises 5–8, do the...Ch. 8.1 - Prob. 9BSCCh. 8.1 - Conclusions. In Exercises 9 – 12, refer to the...
Ch. 8.1 - Prob. 11BSCCh. 8.1 - Conclusions. In Exercises 9 – 12, refer to the...Ch. 8.1 - Prob. 13BSCCh. 8.1 - Prob. 14BSCCh. 8.1 - Prob. 15BSCCh. 8.1 - Prob. 16BSCCh. 8.1 - Prob. 17BSCCh. 8.1 - P -Values. In Exercises 17 ‒ 20, do the...Ch. 8.1 - P -Values. In Exercises 17 ‒ 20, do the...Ch. 8.1 - Prob. 20BSCCh. 8.1 - Prob. 21BSCCh. 8.1 - Prob. 22BSCCh. 8.1 - Prob. 23BSCCh. 8.1 - Prob. 24BSCCh. 8.1 - Prob. 25BSCCh. 8.1 - Prob. 26BSCCh. 8.1 - Prob. 27BSCCh. 8.1 - Final Conclusions. In Exercises 25–28, use a...Ch. 8.1 - Prob. 29BSCCh. 8.1 - Prob. 30BSCCh. 8.1 - Prob. 31BSCCh. 8.1 - Prob. 32BSCCh. 8.1 - Prob. 33BBCh. 8.1 - Prob. 34BBCh. 8.1 - Prob. 35BBCh. 8.2 - In Exercises 1–4, use these results from a USA...Ch. 8.2 - Prob. 2BSCCh. 8.2 - Prob. 3BSCCh. 8.2 - Prob. 4BSCCh. 8.2 - Prob. 5BSCCh. 8.2 - Prob. 6BSCCh. 8.2 - Prob. 7BSCCh. 8.2 - Prob. 8BSCCh. 8.2 - Prob. 9BSCCh. 8.2 - Prob. 10BSCCh. 8.2 - Prob. 11BSCCh. 8.2 - Prob. 12BSCCh. 8.2 - Testing Claims About Proportions. In Exercises 9 –...Ch. 8.2 - Prob. 14BSCCh. 8.2 - Prob. 15BSCCh. 8.2 - Prob. 16BSCCh. 8.2 - Prob. 17BSCCh. 8.2 - Prob. 18BSCCh. 8.2 - Prob. 19BSCCh. 8.2 - Prob. 20BSCCh. 8.2 - Prob. 21BSCCh. 8.2 - Prob. 22BSCCh. 8.2 - Prob. 23BSCCh. 8.2 - Prob. 24BSCCh. 8.2 - Prob. 25BSCCh. 8.2 - Prob. 26BSCCh. 8.2 - Prob. 27BSCCh. 8.2 - Prob. 28BSCCh. 8.2 - Prob. 29BSCCh. 8.2 - Prob. 30BSCCh. 8.2 - Prob. 31BSCCh. 8.2 - Prob. 32BSCCh. 8.2 - Prob. 33BBCh. 8.2 - Prob. 34BBCh. 8.2 - Prob. 35BBCh. 8.3 - Video Games: Checking Requirements Twelve...Ch. 8.3 - Prob. 2BSCCh. 8.3 - Prob. 3BSCCh. 8.3 - Prob. 4BSCCh. 8.3 - Prob. 5BSCCh. 8.3 - Prob. 6BSCCh. 8.3 - Prob. 7BSCCh. 8.3 - Prob. 8BSCCh. 8.3 - Prob. 9BSCCh. 8.3 - Prob. 10BSCCh. 8.3 - Prob. 11BSCCh. 8.3 - Prob. 12BSCCh. 8.3 - Prob. 13BSCCh. 8.3 - Testing Hypotheses. In Exercises 13–24, assume...Ch. 8.3 - Prob. 15BSCCh. 8.3 - Prob. 16BSCCh. 8.3 - Prob. 17BSCCh. 8.3 - Testing Hypotheses. In Exercises 13–24, assume...Ch. 8.3 - Prob. 19BSCCh. 8.3 - Prob. 20BSCCh. 8.3 - Prob. 21BSCCh. 8.3 - Prob. 22BSCCh. 8.3 - Prob. 23BSCCh. 8.3 - Testing Hypotheses. In Exercises 13–24, assume...Ch. 8.3 - Prob. 25BSCCh. 8.3 - Prob. 26BSCCh. 8.3 - Prob. 27BSCCh. 8.3 - Prob. 28BSCCh. 8.3 - Prob. 31BBCh. 8.3 - 32. Interpreting Power For the sample data in...Ch. 8.4 - Prob. 1BSCCh. 8.4 - Cans of Coke Use the data and the claim given in...Ch. 8.4 - Prob. 3BSCCh. 8.4 - Prob. 4BSCCh. 8.4 - Prob. 5BSCCh. 8.4 - Prob. 6BSCCh. 8.4 - Prob. 7BSCCh. 8.4 - Prob. 8BSCCh. 8.4 - Prob. 9BSCCh. 8.4 - Prob. 10BSCCh. 8.4 - Prob. 11BSCCh. 8.4 - Prob. 12BSCCh. 8.4 - Prob. 13BSCCh. 8.4 - Prob. 14BSCCh. 8.4 - Prob. 15BSCCh. 8.4 - Prob. 16BSCCh. 8.4 - Prob. 17BSCCh. 8.4 - Prob. 18BSCCh. 8.4 - Prob. 19BBCh. 8.4 - Prob. 20BBCh. 8 - Prob. 1CQQCh. 8 - Prob. 2CQQCh. 8 - Prob. 3CQQCh. 8 - Prob. 4CQQCh. 8 - Prob. 5CQQCh. 8 - Prob. 6CQQCh. 8 - Prob. 7CQQCh. 8 - Prob. 8CQQCh. 8 - Prob. 9CQQCh. 8 - Prob. 10CQQCh. 8 - Prob. 1CRECh. 8 - Prob. 2CRECh. 8 - Prob. 3CRECh. 8 - Red Blood Cell Count A simple random sample of 40...Ch. 8 - Prob. 5CRECh. 8 - Prob. 6CRECh. 8 - BMI for Miss America Use the same BMI indexes...Ch. 8 - Lightning Deaths Based on the results given in...Ch. 8 - Prob. 1.1CRECh. 8 - Prob. 1.2CRECh. 8 - Prob. 1.3CRECh. 8 - Prob. 1.4CRECh. 8 - Prob. 1.5CRECh. 8 - Prob. 1.6CRECh. 8 - Prob. 1.7CRECh. 8 - Prob. 1.8CRECh. 8 - Prob. 1EPCh. 8 - Prob. 1FDD
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