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In 2017, Americans spent a record-high $9.1 billion on Halloween- related purchases. + Sample data showing the amount, in dollars, 16 adults spent on a Halloween costume are as follows. 10 67 20 66 33 32 29 42 50 14 11 96 43 30 61 20 (a) What is the estimate of the population mean amount (in dollars) adults spend on a Halloween costume? (b) What is the sample standard deviation (in dollars)? (Round your answer to the nearest cent.) (c) Provide a 95% confidence interval estimate of the population standard deviation (in dollars) for the amount adults spend on a Halloween costume. (Round your answers to the nearest cent.) to $

In 2017, Americans spent a record-high $9.1 billion on Halloween- related purchases. + Sample data showing the amount, in dollars, 16 adults spent on a Halloween costume are as follows. 10 67 20 66 33 32 29 42 50 14 11 96 43 30 61 20 (a) What is the estimate of the population mean amount (in dollars) adults spend on a Halloween costume? (b) What is the sample standard deviation (in dollars)? (Round your answer to the nearest cent.) (c) Provide a 95% confidence interval estimate of the population standard deviation (in dollars) for the amount adults spend on a Halloween costume. (Round your answers to the nearest cent.) to $

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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In 2017, Americans spent a record-high $9.1 billion on Halloween- related purchases. + Sample data showing the amount, in dollars, 16 adults spent on a Halloween costume are as follows. 10 67 20 66 33 50 43 32 29 42 14 11 96 30 61 20 (a) What is the estimate of the population mean amount (in dollars) adults spend on a Halloween costume? (b) What is the sample standard deviation (in dollars)? (Round your answer to the nearest cent.) $ (c) Provide a 95% confidence interval estimate of the population standard deviation (in dollars) for the amount adults spend on a Halloween costume. (Round your answers to the nearest cent.) $ to $
Transcribed Image Text:In 2017, Americans spent a record-high $9.1 billion on Halloween- related purchases. + Sample data showing the amount, in dollars, 16 adults spent on a Halloween costume are as follows. 10 67 20 66 33 50 43 32 29 42 14 11 96 30 61 20 (a) What is the estimate of the population mean amount (in dollars) adults spend on a Halloween costume? (b) What is the sample standard deviation (in dollars)? (Round your answer to the nearest cent.) $ (c) Provide a 95% confidence interval estimate of the population standard deviation (in dollars) for the amount adults spend on a Halloween costume. (Round your answers to the nearest cent.) $ to $
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