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at is the test statistic? (Round your answer to three decimal places.) at is the p-value? (Round your answer to four decimal places.) value= is your conclusion? Do not reject Ho. We can conclude that the mean tree-planting time differs from two hours. There is a reason to change from the two hours for cost estimating purpos Do not reject Ho. We cannot conclude that the mean tree-planting time differs from two hours. There is no reason to change from the two hours for cost estimating pu Reject Ho. We can conclude that the mean tree-planting time differs from two hours. There is a reason to change from the two hours for cost estimating purposes. Reject Ho. We cannot conclude that the mean tree-planting time differs from two hours. There is no reason to change from the two hours for cost estimating purposes. Help? Read It Watch It

at is the test statistic? (Round your answer to three decimal places.) at is the p-value? (Round your answer to four decimal places.) value= is your conclusion? Do not reject Ho. We can conclude that the mean tree-planting time differs from two hours. There is a reason to change from the two hours for cost estimating purpos Do not reject Ho. We cannot conclude that the mean tree-planting time differs from two hours. There is no reason to change from the two hours for cost estimating pu Reject Ho. We can conclude that the mean tree-planting time differs from two hours. There is a reason to change from the two hours for cost estimating purposes. Reject Ho. We cannot conclude that the mean tree-planting time differs from two hours. There is no reason to change from the two hours for cost estimating purposes. Help? Read It Watch It

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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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): 1.7, 1.6, 2.5, 2.2, 2.5, 2.3, 2.6, 3.0, 1.3, 2.3 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 alternative hypotheses.** - \( H_0 \): \(\mu = 2\) - \( H_a \): \(\mu \neq 2\) **(b) Compute the sample mean.** **(c) Compute the sample standard deviation.** (Round your answer to three decimal places.) **(d) What is the test statistic?** (Round your answer to three decimal places.) **What is the p-value?** (Round your answer to four decimal places.)
Transcribed Image Text: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): 1.7, 1.6, 2.5, 2.2, 2.5, 2.3, 2.6, 3.0, 1.3, 2.3 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 alternative hypotheses.** - \( H_0 \): \(\mu = 2\) - \( H_a \): \(\mu \neq 2\) **(b) Compute the sample mean.** **(c) Compute the sample standard deviation.** (Round your answer to three decimal places.) **(d) What is the test statistic?** (Round your answer to three decimal places.) **What is the p-value?** (Round your answer to four decimal places.)
### Statistical Analysis for Tree-Planting Time Study **Questions:** (c) Compute the sample standard deviation. (Round your answer to three decimal places.) (d) What is the test statistic? (Round your answer to three decimal places.) (e) What is the p-value? (Round your answer to four decimal places.) p-value = __________ **Conclusion:** (e) What is your conclusion? - ○ Do not reject \( H_0 \). We can conclude that the mean tree-planting time differs from two hours. There is a reason to change from the two hours for cost estimating purposes. - ○ Do not reject \( H_0 \). We cannot conclude that the mean tree-planting time differs from two hours. There is no reason to change from the two hours for cost estimating purposes. - ○ Reject \( H_0 \). We can conclude that the mean tree-planting time differs from two hours. There is a reason to change from the two hours for cost estimating purposes. - ○ Reject \( H_0 \). We cannot conclude that the mean tree-planting time differs from two hours. There is no reason to change from the two hours for cost estimating purposes. **Need Help?** Buttons for additional help: - **Read It** - **Watch It** **Image Description:** The image shows a screenshot of a MacBook Pro displaying a webpage with a statistical study related to the mean tree-planting time. There are also application icons on the MacBook's dock, indicating apps like Finder, Safari, Mail, Calendar, Notes, Contacts, and Music, among others.
Transcribed Image Text:### Statistical Analysis for Tree-Planting Time Study **Questions:** (c) Compute the sample standard deviation. (Round your answer to three decimal places.) (d) What is the test statistic? (Round your answer to three decimal places.) (e) What is the p-value? (Round your answer to four decimal places.) p-value = __________ **Conclusion:** (e) What is your conclusion? - ○ Do not reject \( H_0 \). We can conclude that the mean tree-planting time differs from two hours. There is a reason to change from the two hours for cost estimating purposes. - ○ Do not reject \( H_0 \). We cannot conclude that the mean tree-planting time differs from two hours. There is no reason to change from the two hours for cost estimating purposes. - ○ Reject \( H_0 \). We can conclude that the mean tree-planting time differs from two hours. There is a reason to change from the two hours for cost estimating purposes. - ○ Reject \( H_0 \). We cannot conclude that the mean tree-planting time differs from two hours. There is no reason to change from the two hours for cost estimating purposes. **Need Help?** Buttons for additional help: - **Read It** - **Watch It** **Image Description:** The image shows a screenshot of a MacBook Pro displaying a webpage with a statistical study related to the mean tree-planting time. There are also application icons on the MacBook's dock, indicating apps like Finder, Safari, Mail, Calendar, Notes, Contacts, and Music, among others.
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