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). With a level of significance, test to see whether the mean tree-planting time differs from hours. Use a=.02 H(o) u=2
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).
With a level of significance, test to see whether the mean tree-planting time differs from hours. Use a=.02
H(o) u=2
H (a) u can't equal 2
I just need to find the t value. The mean is 2.5, standard diviation is .411. I keep on getting 3.847 but it says its wrong
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