Question

The Dog Days Lawn Service advertises that it will completely maintain your lawn at an average cost per customer of $35 per month. Assume the costs are normally distributed. A random sample of 18 Dog Days customers shows the average cost to be $32.50 with a population standard deviation of $8.10. Do the data support the claim that the average cost per month is less than $35.00? Use a 5% level of significance. Show all steps.

Name: the dog days lawn service advertises that it will completely maintain your lawn at an average cost per customer of 35 per month assume the costs are normally distributed a random sample of 1 11547
Uploaded: 2022-06-08T19:23:56-08:00
Duration: 2 min 47 s
Channel: Sheryl Ezze
Description: the dog days lawn service advertises that it will completely maintain your lawn at an average cost per customer of 35 per month assume the costs are normally distributed a random sample of 1 11547

          The Dog Days Lawn Service advertises that it will completely
maintain your lawn at an average cost per customer of $35 per
month. Assume the costs are normally distributed. A random sample
of 18 Dog Days customers shows the average cost to be $32.50 with a
population standard deviation of $8.10. Do the data support the
claim that the average cost per month is less than $35.00? Use a 5%
level of significance. Show all steps.

Added by Mackenzie C.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Sheryl Ezze

06/08/2022

Step 1

- Null hypothesis (H0): The average cost per month is $35. - Alternative hypothesis (H1): The average cost per month is less than $35. Show more…

Show all steps

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The Dog Days Lawn Service advertises that it will completely maintain your lawn at an average cost per customer of $35 per month. Assume the costs are normally distributed. A random sample of 18 Dog Days customers shows the average cost to be $32.50 with a population standard deviation of $8.10. Do the data support the claim that the average cost per month is less than $35.00? Use a 5% level of significance. Show all steps.