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Joans 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, 1.5, 2.6, 2.2, 2.4, 2.3, 2.6, 3.0, 1.4, 2.3With a .05 level of significance, test to see whether the mean tree-planting time differs from two hours.
a. State the null and alternative hypotheses.
b. Compute the sample mean.
c. Compute the sample standard deviation.
d. What is the p-value?
e. What is your conclusion?
A sample of 60 mutual funds was taken and the mean return in the sample was 13% with a standard deviation of 6.9%. The return on a particular index of stocks (against which the mut
A new industry develops, and our government wants to protect it from foreign competition. Which one of the following arguments would appropriately describe this type of protection?
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If the marginal disutility of labor increases, the equilibrium real wage increases and the equilibrium quantity of labor goes up. True or false?
how large money is supply (M1)
What can be the topic to make assignment on indian macro economics
Historically, the proportion of students entering a university who finished in 4 years or less was 64%. To test whether this proportion has decreased, 122 students were examined an
Hello sir, madam... I am hassan PHD student. I''m lost to get a good frame work of my thesis about e government and economic growth. and I need to know how to measure the variable
Several species of Alternaria (A. citri, A. alternata, A. solani and A. tenuissima) produce toxic substances that have been found in apples, tomatoes, blueberries and others. The
Consider a market where supply and demand are given by QXS = -12 + PX and QXd = 78 - 2PX. Suppose the government imposes a price floor of $35, and agrees to purchase any and all un
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