A snack food manufacturer estimates that the variance of the number of grams of carbohydrates in servings of its tortilla chips is 1.26. A dietician is asked to test this claim and finds that a random sample of 24 servings has a variance of 1.13. At a = 0.01, is there enough evidence to reject the manufacturer's claim? Assume the population is normally distributed. Complete parts (a) through (e) below. (c) Find the standardized test statistic y2. 20.63 (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis, and (e) interpret the decision in the context of the original claim. Fill in the correct answers below. V Ho. There venough evidence to at the 1% level of significance to reject the manufacturer's claim that the variance of the number of grams of carbohydrates in servings of its tortilla chips is 1.26.
A snack food manufacturer estimates that the variance of the number of grams of carbohydrates in servings of its tortilla chips is 1.26. A dietician is asked to test this claim and finds that a random sample of 24 servings has a variance of 1.13. At a = 0.01, is there enough evidence to reject the manufacturer's claim? Assume the population is normally distributed. Complete parts (a) through (e) below. (c) Find the standardized test statistic y2. 20.63 (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis, and (e) interpret the decision in the context of the original claim. Fill in the correct answers below. V Ho. There venough evidence to at the 1% level of significance to reject the manufacturer's claim that the variance of the number of grams of carbohydrates in servings of its tortilla chips is 1.26.
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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Transcribed Image Text:A snack food manufacturer estimates that the variance of the number of grams
of carbohydrates in servings of its tortilla chips is 1.26. A dietician is asked to test
this claim and finds that a random sample of 24 servings has a variance of 1.13.
At a = 0.01, is there enough evidence to reject the manufacturer's claim?
Assume the population is normally distributed. Complete parts (a) through (e)
below.
(c) Find the standardized test statistic y2.
20.63
(Round to two decimal places as
needed.)
(d) Decide whether to reject or fail to reject the null hypothesis, and (e)
interpret the decision in the context of the original claim. Fill in the correct
answers below.
V Ho. There
venough evidence to at the 1% level of
significance to reject the manufacturer's claim that the variance of the number
of grams of carbohydrates in servings of its tortilla chips is 1.26.
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