Mathematics, 15.08.2020 18:01 joel3410
A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is greater than seconds. A random sample of sedans has a mean minimum time to travel a quarter mile of seconds and a standard deviation of seconds. At 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 and . mu equals 14.6 mu greater than 14.6 (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 1.52 (Round to two decimal places as needed.) Obtain the P-value. P 0.072 (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. ▼ because the P-value ▼ is not is greater than . (d) Interpret the decision in the context of the original claim. There ▼ is not is enough evidence at the nothing% level of significance to ▼ support reject the claim that the mean minimum time it takes for a sedan to travel a quarter mile is ▼ greater than equal to greater than or equal to not equal to less than or equal to less than nothing seconds. (Type integers or decimals. Do not round.)
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