Your friend believes that he has found a route to work that would make your commute faster than what it currently is undersimilar conditions. Suppose that data were collected for a random set of 7 days, where each difference is calculated bysubtracting the time taken on the current route from the time taken on the new route. Assume that the populations arenormally distributed. What type of test is this hypothesis test?Select the correct answer below:O This is a left-tailed test because the alternative hypothesis is H: H 0O This is a left-tailed test because the alternative hypothesis is H0O This is a two-tailed test because the alternative hypothesis is H:Hu 0.0 This is a right-tailed test because the alternative hypothesis is Њ : d > 0.O This is a right-tailed test because the alternative hypothesis is H: H 0.

Question
Asked Apr 15, 2019
132 views
Your friend believes that he has found a route to work that would make your commute faster than what it currently is under
similar conditions. Suppose that data were collected for a random set of 7 days, where each difference is calculated by
subtracting the time taken on the current route from the time taken on the new route. Assume that the populations are
normally distributed. What type of test is this hypothesis test?
Select the correct answer below:
O This is a left-tailed test because the alternative hypothesis is H: H 0
O This is a left-tailed test because the alternative hypothesis is H0
O This is a two-tailed test because the alternative hypothesis is H:Hu 0.
0 This is a right-tailed test because the alternative hypothesis is Њ : d > 0.
O This is a right-tailed test because the alternative hypothesis is H: H 0.
help_outline

Image Transcriptionclose

Your friend believes that he has found a route to work that would make your commute faster than what it currently is under similar conditions. Suppose that data were collected for a random set of 7 days, where each difference is calculated by subtracting the time taken on the current route from the time taken on the new route. Assume that the populations are normally distributed. What type of test is this hypothesis test? Select the correct answer below: O This is a left-tailed test because the alternative hypothesis is H: H 0 O This is a left-tailed test because the alternative hypothesis is H0 O This is a two-tailed test because the alternative hypothesis is H:Hu 0. 0 This is a right-tailed test because the alternative hypothesis is Њ : d > 0. O This is a right-tailed test because the alternative hypothesis is H: H 0.

fullscreen
check_circle

Expert Answer

star
star
star
star
star
1 Rating
Step 1

Explanation:

The friend specifically believes that the new route is faster than the current route. This means that, according to the friend, the current route takes more time than the new route.

Now, the difference for each of the 7 days is obtained by subtracting the time taken on the current route, from that of the new route. So, if the friend’s claim is true and the current route really takes more time than the new one, this is subtracting a higher value from a lower value. Then the mean difference, µd, would be negative or less than 0.

Thus, the alternative hypothesis is:

Ha: µd < 0, that is, the new...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Math

Statistics

Related Statistics Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: A used car dealer claims that the median cost of a used car is $12,000. In a random sample of 15 use...

A: Given median cost of a used car = $12000Total number of used cars in sample = n = 15Total number of ...

question_answer

Q: NORMAL DISTRI BUTION (PINKIE LENGTH) Class Time: Names: STUDENT LEARNING OUTCOMES The student will c...

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,...

question_answer

Q: A store sells bags of candy that weigh exactly 2lb, according to their packaging. Elena, the store m...

A: It is given that the store sells bags of weight, exactly 2lb. The claim is that the population mean ...

question_answer

Q: Find the probability of an event E if the odds for E is equal to the odds against

A: Odds of an event:The odds an event is given by the ratio of the probability of the event to its prob...

question_answer

Q: 1.) The mean monthly utility bill for a sample of households in a city is $178.95 with a standard de...

A: Mean utility bill, µ= $178.95Standard  deviation, σ = $13.45

question_answer

Q: Suppose 230 subjects are treated with a drug that is used to treat pain and 54 of them developed nau...

A: Given hypothesis testNull Hypothesis : p = 0.20Alternative Hypothesis : p &gt; 0.20The sample size n...

question_answer

Q: An investigator wants to assess whether the use of a specific medication given to infants born prema...

A: The cohort study generally involves a group of individuals that meet a set of criteria at the study ...

question_answer

Q: List and describe two of the common types of explanations for statistical relationships (other than ...

A: Common types of explanations for statistical relationships:The common types of explanations for stat...

question_answer

Q: 2. You are at Disney World and wait 45 minutes to ride the roller coaster at Space Mountain. Guests ...

A: The aim is to define the cycle time of the process and the throughput time.