Question

3. For cost purposes, Hollys Nursery managers use two hours of labor time for planting a medium- sized tree. Actual times from a sample of 12 plantings during the past month follow (times in hours). The data below can be imported into Excel for analysis. 1.8 12 2.1 2.7 2.7 3 0.6 1.8 2.6 1.31.5 0.9 With a 0.05 level of significance, test to see whether the mean tree planting time differs from two hours. a. State the Null and Altenative hypothesis b. Compute the sample mean c. Compute the sample standard deviation. d. What is the p-value? o What is your conclusion?
0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
3. For cost purposes, Holly's Nursery managers use two hours of labor time for planting a...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Please label and and show each step 3. For cost purposes, Holly’s Nursery managers use two...

    Please label and and show each step 3. For cost purposes, Holly’s Nursery managers use two hours of labor time for planting a medium – sized tree. Actual times from a sample of 12 plantings during the past month follow (times in hours). The data below can be imported into Excel for analysis. 1.8 1.2 2.1 2.7 2.7 3 0.6 1.8 2.6 1.3 1.5 0.9 With a 0.05 level of significance, test to see whether the mean tree planting time...

  • 4. Joan's Nursery specializes in custom-designed landscaping for residential areas. The estimated...

    4. Joan's Nursery specializes in custom-designed landscaping for residential areas. The estimated labor cost associated with a particular landscaping proposal is based on the number of plantings of trees, shrubs, and so on to be used for the project. For cost-estimating purposes, managers use two hours of labor time for the planting of a medium-sized tree. Actual times from a sample of 10 plantings during the past month in hours are as follows: 1.7 1.5 2.6 2.2 2.4 2.3 2.63.042.3...

  • Joan's Nursery specializes in custom-designed landscaping for residential areas. The estimated labor cost associated with a...

    Joan's Nursery specializes in custom-designed landscaping for residential areas. The estimated labor cost associated with a particular landscaping proposal is based on the number of plantings of trees, shrubs, and so on to be used for the project. For cost estimating purposes, managers use one and half hours of labor time for the planting of a medium-sized tree. Actual times from a sample of 10 plantings during the past month follow (times in hours). 1.4 2.0 1.6 1.6 1.3 2.5...

  • You may need to use the appropriate technology to answer this question. Joan's Nursery specializes in...

    You may need to use the appropriate technology to answer this question. Joan's Nursery specializes in custom-designed landscaping for residential areas. The estimated labor cost associated with a particular landscaping proposal is based on the number of plantings of trees, shrubs, and so on to be used for the project. For cost-estimating purposes, managers use two hours of labor time for the planting of a medium-sized tree. Actual times from a sample of 10 plantings during the past month follow...

  • The time married men with children spend on child care averages 6.7 hours per week (Time,...

    The time married men with children spend on child care averages 6.7 hours per week (Time, March 12, 2012). You belong to a professional group on family practices that would like to do its own study to determine if the time married men in your area spend on child care per week differs from the reported mean of 6.7 hours per week. A sample of 40 married couples will be used with the data collected showing the hours per week...

  • The time married men with children spend on child care averages 5.9 hours per week (Time,...

    The time married men with children spend on child care averages 5.9 hours per week (Time, March 12, 2012). You belong to a professional group on family practices that would like to do its own study to determine if the time married men in your area spend on child care per week differs from the reported mean of 5.9 hours per week. A sample of 40 married couples will be used with the data collected showing the hours per week...

  • 5.3.35 i Question Help The average time spent sleeping (in hours) for a group of medical...

    5.3.35 i Question Help The average time spent sleeping (in hours) for a group of medical residents at a hospital can be approximated by a normal distribution, as shown in the graph to the right Answer parts (a) and (b) below Sleeping Times of Medical Residents 6.5 hours Click to view page 1 of the table Click to view page 2 of the table Hours (a) What is the shortest time spent sleeping that would still place a resident in...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT