A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is greater than 14.5 seconds. A random sample of 22 sedans has a mean minimum time to travel a quarter mile of 15.6 seconds and a standard deviation of 2.11 seconds. At a = 0.05 is there enough evidence to support the consumer group's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. (a) Identify the claim and state H, and H. Ho: Ha: (Type integers or decimals. Do not round.) V hypothesis. The claim is the

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​(a) Identify the claim and state H0 and Ha. ​(b) Use technology to find the critical​ value(s) and identify the rejection​ region(s). ​(c) Find the standardized test​ statistic, t. ​(d) Decide whether to reject or fail to reject the null hypothesis. ​(e) Interpret the decision in the context of the original claim.
A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is greater than 14.5 seconds. A random sample of 22 sedans has a
mean minimum time to travel a quarter mile of 15.6 seconds and a standard deviation of 2.11 seconds. At a = 0.05 is there enough evidence to support the consumer
group's claim? Complete parts (a) through (d) below. Assume the population is normally distributed.
(a) Identify the claim and state Ho and H.
Ho:
Ha:
(Type integers or decimals. Do not round.)
The claim is the
hypothesis.
Enter your answer in the edit fields and then click Check Answer.
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UUdT eu test Slaistic 2.
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 14.5 seconds. A random sample of 22 sedans has a mean minimum time to travel a quarter mile of 15.6 seconds and a standard deviation of 2.11 seconds. At a = 0.05 is there enough evidence to support the consumer group's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. (a) Identify the claim and state Ho and H. Ho: Ha: (Type integers or decimals. Do not round.) The claim is the hypothesis. Enter your answer in the edit fields and then click Check Answer. Check Answer Clear All 4 parts remaining UUdT eu test Slaistic 2.
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