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A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is greater than 14.8 seconds. A random sample of 23 sedans has a mean minimum time to travel a quarter mile of 15.3 seconds and a standard deviation of 2.11 seconds. At a = 0.10 is there enough evidence to support the consumer group's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. (Type integers or decimals. Do not round.) The claim is the alternative hypothesis. (b) Use technology to find the P-value. Find the standardized test statistic, t. t= 1.23 (Round to two decimal places as needed.) Obtain the P-value. P= 2.333 (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Fail to reject H, because the P-value is not greater than a. (d) Interpret the decision in the context the original claim. is enough evidence at the 10 % level of significance to support the claim that the mean minimum time it takes for a sedan to travel a quarter mile is There equal to 2.11 seconds.

A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is greater than 14.8 seconds. A random sample of 23 sedans has a mean minimum time to travel a quarter mile of 15.3 seconds and a standard deviation of 2.11 seconds. At a = 0.10 is there enough evidence to support the consumer group's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. (Type integers or decimals. Do not round.) The claim is the alternative hypothesis. (b) Use technology to find the P-value. Find the standardized test statistic, t. t= 1.23 (Round to two decimal places as needed.) Obtain the P-value. P= 2.333 (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Fail to reject H, because the P-value is not greater than a. (d) Interpret the decision in the context the original claim. is enough evidence at the 10 % level of significance to support the claim that the mean minimum time it takes for a sedan to travel a quarter mile is There equal to 2.11 seconds.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is greater than 14.8 seconds. A random sample of 23 sedans has a mean minimum time to travel a quarter mile of 15.3 seconds and a standard deviation of 2.11 seconds. At a =0.10 is there enough evidence to support the consumer group's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. ..... (Type integers or decimals. Do not round.) The claim is the alternative hypothesis. (b) Use technology to find the P-value. Find the standardized test statistic, t. t= 1.23 (Round to two decimal places as needed.) Obtain the P-value. P = 2.333 (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Fail to reject H, because the P-value is not greater than a. (d) Interpret the decision in the context of the original claim. is enough evidence at the 10% level of significance to support the claim that the mean minimum time it takes for a sedan to travel a quarter mile is There equal to 2.11 seconds.
Transcribed Image Text:A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is greater than 14.8 seconds. A random sample of 23 sedans has a mean minimum time to travel a quarter mile of 15.3 seconds and a standard deviation of 2.11 seconds. At a =0.10 is there enough evidence to support the consumer group's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. ..... (Type integers or decimals. Do not round.) The claim is the alternative hypothesis. (b) Use technology to find the P-value. Find the standardized test statistic, t. t= 1.23 (Round to two decimal places as needed.) Obtain the P-value. P = 2.333 (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Fail to reject H, because the P-value is not greater than a. (d) Interpret the decision in the context of the original claim. is enough evidence at the 10% level of significance to support the claim that the mean minimum time it takes for a sedan to travel a quarter mile is There equal to 2.11 seconds.
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