Introductory Statistics
Introductory Statistics
1st Edition
ISBN: 9781938168208
Author: Barbara Illowsky, Susan Dean
Publisher: OpenStax College
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Chapter 8, Problem 92P

Use the following information to answer the next 16 exercises. The Ice Chalet offers dozens of different beginning ice- skating classes. All of the class names are put Into a bucket. The 5 P.M., Monday night, ages 8 to 12, beginning ice-skating class was picked. In the class were 6.1 girls and 16 boys. Suppose that we are Interested in the true proportion of gixls, ages 8 to 12. In all beginning ice-skating classes at the Ice Chalet. Assume that the children in the selected class are a random sample of the population.

Using the same p and level of confidence. suppose that n were increased to 100. Would the error bound become larger or smaller? How do you know?

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Chapter 8 Solutions

Introductory Statistics

Ch. 8 - A student polls his school to see If students In...Ch. 8 - Out of a random sample of 65 freshmen at State...Ch. 8 - The Berkman Center Study referenced in Example...Ch. 8 - Suppose an Internet marketing company wants to...Ch. 8 - Use the following information to answer the next...Ch. 8 - Use the following information to answer the next...Ch. 8 - Use the following information to answer the next...Ch. 8 - Use the following information to answer the next...Ch. 8 - Use the following information to answer the next...Ch. 8 - Use (he following information to answer the next...Ch. 8 - Use (he following information to answer the next...Ch. 8 - Use the following information to answer the next...Ch. 8 - Use the following information to answer the next...Ch. 8 - Use the following information to answer the next...Ch. 8 - Use the following information to answer the next...Ch. 8 - Use the following information to answer the next...Ch. 8 - Use the following information to answer the next...Ch. 8 - 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The Federal Election Commission collects...Ch. 8 - The American Community Survey (ACS), part of the...Ch. 8 - The average height of young adult males has a...Ch. 8 - In six packages of The Flintstones Real Fruit...Ch. 8 - A random survey of enrollment at 35 community...Ch. 8 - Suppose that a committee is studying whether or...Ch. 8 - A pharmaceutical company makes tranquilizers. It...Ch. 8 - Suppose that 14 children, who were learning to...Ch. 8 - The Federal Election Commission (FEC) collects...Ch. 8 - Forbes magazine published data on the best small...Ch. 8 - Unoccupied seats on flights cause airlines to lose...Ch. 8 - In a recent sample of 84 used car sales costs, the...Ch. 8 - Six different national brands of chocolate chip...Ch. 8 - A survey of the mean number of cents off that...Ch. 8 - Use the following information o ansier the next...Ch. 8 - Use the following information o ansier the next...Ch. 8 - Insurance companies are interested In knowing the...Ch. 8 - Suppose that the insurance companies did do a...Ch. 8 - According to a recent survey of 1,200 people. 61%...Ch. 8 - An article regarding interracial dating and...Ch. 8 - Refer to the information In Exercise 8.120. a....Ch. 8 - Stanford University conducted a study of whether...Ch. 8 - A telephone poll of 1,000 adult Americans was...Ch. 8 - Refer to Exercise 8.123. Another question in the...Ch. 8 - Use the following informariton to answer the next...Ch. 8 - Use the following informariton to answer the next...Ch. 8 - Use the following informariton to answer the next...Ch. 8 - Use the following information to answer the next v...Ch. 8 - Use the following information to answer the next v...Ch. 8 - On May 23, 2013, Gallup reported that of the 1,005...Ch. 8 - A national survey of 1000 adults was conducted on...Ch. 8 - Public Policy Polling recently conducted a survey...Ch. 8 - You plan to conduct a survey on your college...Ch. 8 - In a recent Zogby International Poll, nine of .18...
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