Question: The Magnus Timber Company claims that it has replanted an
The Magnus Timber Company claims that it has replanted an average of (at least) 1500 trees per acre in areas that the company has harvested. Friends of the Forest, a conservation group, insists that the average is less than 1500 trees. You take a random sample of 75 acres that Magnus has harvested and find that the average number of replanted trees for the sampled acres is 1438. Is this sample result sufficient to reject the Magnus claim at the 5% significance level? Assume the population standard deviation is 340 trees. Report the p value for this sample result and explain what it means.
Relevant QuestionsThe fundamental hypothesis test in the American judicial system involves the following hypotheses: H0 : The accused is innocent. Ha: The accused is guilty. a. Describe what a Type I error would be here. b. Describe what a ...Suppose you are testing the following hypotheses: H0: = 100 (The population mean is 100.) Ha: ≠ 100 (The population mean is not 100.) Sample size is 64. The sample mean is 107. The population standard deviation is 36. The ...The average number of online orders for Packard Espinosa Electronics is 258 per day. In a sample of 30 Tuesdays, the average number of orders was 289. If you were to use the sample average in a hypothesis test to determine ...Suppose you are testing the following hypotheses: H0: μ = 3200 Ha: μ ≠ 3200 Sample size is 9. The sample mean is 3260 and the sample standard deviation is 120. The significance level is .10. Assume that the values in the ...Advantage Manufacturing, a manufacturer of above ground portable swimming pools, claims that “the average family can assemble the Advantage Pool within one hour” (patiostore.com). In a telephone survey of 50 randomly ...
Post your question