A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is greater than 14.8seconds. A random sample of 22 sedans has a mean minimum time to travel a quarter mile of 15.3 seconds and a standard deviation of 2.12 seconds. At α=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 H0 and Ha.
(b) use technology to find the P value. Find the standardized test statistic, t.
t=______
Obtain the P value
P=_______
(c)Decide whether to reject or fail to reject the null hypothesis:
(d) Interpret the decision in the context of the original claim:
A consumer group claims that the average annual consumption of high fructose corn syrup by a person in the U.S. is 48.8 pounds. You believe it is higher. You take a simple random sample of 31 people in the U.S. and find an average of 53.9 pounds with a standard deviation of 4.2 pounds. Test at 5% significance.
Round to the fourth
H0H0:Select an answer x̄ p̂ μ p Select an answer = < > ≠
HAHA:Select an answer x̄ p̂ μ p Select an answer = < > ≠
Test Statistic:
P-value:
Did something significant happen? Select an answer Significance Happened Nothing Significant Happened
Select the Decision Rule: Select an answer Reject the Null Accept the Null Fail to Reject the Null
There Select an answer is is not enough evidence to conclude
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 23 sedans has a mean minimum time to travel a quarter mile of 15.5 seconds and a standard deviation of 2.11 seconds. At α=0.01 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 H0 and Ha.
The claim is the _____ hypothesis
(b) use technology to find the P value. Find the standardized test statistic, t.
t=______
Obtain the P value
P=_______
(c)Decide whether to reject or fail to reject the null hypothesis:
(d) Interpret the decision in the context of the original claim:
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more
Recent Comments