can someone help? 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 (times in hours). 1.0 3.2 2.3 0.9 2.8 2.4 2.3 3.3 0.9 3.0 With a 0.02 level of significance, test to see whether the mean tree-planting time differs from two hours. a. State the null and alternative hypotheses. Ho :u = Ha : H b. Compute the sample mean. 2.2 (to 1 decimal) c. Compute the sample standard deviation. 0.948 (to 3 decimals) d. What is the p-value? t-value 2.862 * (to 3 decimals) p-value greater than .10 e. What is your conclusion? We do not reject the null. There is not enough evidence to prove that the mean tree-planting time differs from ?… Show moreMathStatistics and Probability STATISTICS B421/GEB43
solved : can someone help? Joan’s Nursery specializes in custom-desig
How it works
- Paste your instructions in the instructions box. You can also attach an instructions file
- Select the writer category, deadline, education level and review the instructions
- Make a payment for the order to be assigned to a writer
- Download the paper after the writer uploads it
Will the writer plagiarize my essay?
You will get a plagiarism-free paper and you can get an originality report upon request.
Is this service safe?
All the personal information is confidential and we have 100% safe payment methods. We also guarantee good gradesLET THE PROFESSIONALS WRITE YOUR PAPER!