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

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Joan S Nursery Specializes In Custom Designed Landscaping For Residential Areas The Estimated Labor Cost Associated Wit 1 (24.94 KiB) Viewed 25 times

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) 1.6 1.4 2.7 2.3 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. M₂ - 2 M₂N2 Mews2 M₂/MX2 M22 H₂u<2 M₂2 H, MS2 M₂ <2 H₂22 (0) Compute the sample mean (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-valus? (Round your answer to four decimal places) p-value=