rette Smoking A researcher found that a cigarette smoker smokes on average 30 cigarettes a day. She feels that this age is too low. She selected a random sample of 9 smokers and found that the mean number of cigarettes they smoked per was 32. The sample standard deviation was 2.4. At a -0.10, is there enough evidence to support her claim? Assume that the lation is approximately normally distributed. Use the critical value method and tables. art 1 of 5 ) State the hypotheses and identify the claim. Ho: (Choose one) H: (Choose one) his hypothesis test is a (Choose one) test. art 2 of 5 p) 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):
rette Smoking A researcher found that a cigarette smoker smokes on average 30 cigarettes a day. She feels that this age is too low. She selected a random sample of 9 smokers and found that the mean number of cigarettes they smoked per was 32. The sample standard deviation was 2.4. At a -0.10, is there enough evidence to support her claim? Assume that the lation is approximately normally distributed. Use the critical value method and tables. art 1 of 5 ) State the hypotheses and identify the claim. Ho: (Choose one) H: (Choose one) his hypothesis test is a (Choose one) test. art 2 of 5 p) 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):
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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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
(a) State the hypotheses and identify the claim.
Ho: (Choose one)
H: (Choose one) v
This hypothesis test is a (Choose one) v test.
Part 2 of 5
(b) Find the critical value(s). Round the answer
them with commas.
three decimal places. If there is more than one critical value, seperate
Critical value(s):

Transcribed Image Text:Part 3 of 5
(c) Compute the test value. Always roundt score values to three decimal places.
Part 4 of 5
(d) Make the decision.
(Choose one) ▼ the null hypothesis.
Part: 4 /5
Part 5 of 5
(e) Summarize the results.
There is (Choose one)
that the mean number of cigarettes
smoked per day is greater than 30.
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