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 deviation of 2.09 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. (a) Identify the claim and state Ho and Ha Ho: H₂: (Type integers or decimals. Do not round.) The claim is the ▼hypothesis. (b) Use technology to find the P-value. Find the standardized test statistic, t. (Round to two decimal places as needed.) Obtain the P-value. P= (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Ho because the P-value greater than a (d) Interpret the decision in the context of the original claim. There enough evidence at the % level of significance to (Type integers or decimals. Do not round.) the claim that the mean minimum time takes for a sedan travel a quarter mile is quarter mile of 15.3 seconds and a standard seconds.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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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 2.09 seconds. At x = 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.
(a) Identify the claim and state Ho and Ha
·
Ho:
Ha:
(Type integers or decimals. Do not round.)
The claim is the
hypothesis.
(b) Use technology to find the P-value. Find the standardized test statistic, t.
t=
(Round to two decimal places as needed.)
Obtain the P-value.
P =
(Round to three decimal places as needed.)
(c) Decide whether to reject or fail to reject the null hypothesis.
Ho because the P-value
(d) Interpret the decision in the context of the original claim.
There
enough evidence at the
(Type integers or decimals. Do not round.)
greater than α.
level of significance to
the claim that the mean minimum time it takes for a sedan to travel a quarter mile is
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 2.09 seconds. At x = 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. (a) Identify the claim and state Ho and Ha · Ho: Ha: (Type integers or decimals. Do not round.) The claim is the hypothesis. (b) Use technology to find the P-value. Find the standardized test statistic, t. t= (Round to two decimal places as needed.) Obtain the P-value. P = (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Ho because the P-value (d) Interpret the decision in the context of the original claim. There enough evidence at the (Type integers or decimals. Do not round.) greater than α. level of significance to the claim that the mean minimum time it takes for a sedan to travel a quarter mile is seconds.
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