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Cigarette Smoking A researcher found that a cigarette smoker smokes on average 30 cigarettes a day. She feels that this average is too low. She selected a random sample of 9 smokers and found that the mean number of cigarettes they smoked per day was 32. The sample standard deviation was 2.4. At a = 0.10, is there enough evidence to support her claim? Assume that the population is approximately normally distributed. Use the critical value method and tables. Part 1 of 5 (a) State the hypotheses and identify the claim. H:u = 30 not claim H :µ > 30 | claim This hypothesis test is a one-tailed v test. Part: 1/ 5 Part 2 of 5 (b) Find the critical value(s). Round the answer to three decimal places. If there is more than one critical value, seperate them with commas. Critical value(s):

Cigarette Smoking A researcher found that a cigarette smoker smokes on average 30 cigarettes a day. She feels that this average is too low. She selected a random sample of 9 smokers and found that the mean number of cigarettes they smoked per day was 32. The sample standard deviation was 2.4. At a = 0.10, is there enough evidence to support her claim? Assume that the population is approximately normally distributed. Use the critical value method and tables. Part 1 of 5 (a) State the hypotheses and identify the claim. H:u = 30 not claim H :µ > 30 | claim This hypothesis test is a one-tailed v test. Part: 1/ 5 Part 2 of 5 (b) Find the critical value(s). Round the answer to three decimal places. If there is more than one critical value, seperate them with commas. Critical value(s):

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
Section10.5: Comparing Sets Of Data
Problem 13PPS
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Cigarette Smoking A researcher found that a cigarette smoker smokes on average 30 cigarettes a day. She feels that this average is too low. She selected a random sample of 9 smokers and found that the mean number of cigarettes they smoked per day was 32. The sample standard deviation was 2.4. At a = 0.10, is there enough evidence to support her claim? Assume that the population is approximately normally distributed. Use the critical value method and tables. Part 1 of 5 olo (a) State the hypotheses and identify the claim. H: u = 30 not claim H : u > 30| claim This hypothesis test is a one-tailed test. Part: 1/5 Part 2 of 5 (b) Find the critical value(s). Round the answer to three decimal places. If there is more than one critical value, seperate them with commas. Critical value(s):
Transcribed Image Text:Cigarette Smoking A researcher found that a cigarette smoker smokes on average 30 cigarettes a day. She feels that this average is too low. She selected a random sample of 9 smokers and found that the mean number of cigarettes they smoked per day was 32. The sample standard deviation was 2.4. At a = 0.10, is there enough evidence to support her claim? Assume that the population is approximately normally distributed. Use the critical value method and tables. Part 1 of 5 olo (a) State the hypotheses and identify the claim. H: u = 30 not claim H : u > 30| claim This hypothesis test is a one-tailed test. Part: 1/5 Part 2 of 5 (b) Find the critical value(s). Round the answer to three decimal places. If there is more than one critical value, seperate them with commas. Critical value(s):
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