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A study was conducted to see whether monetary incentives to use less water during times of drought had an effect on water usage. Sixty single family homeowners were randomly assigned to one of two groups: 1) monetary incentives and 2) no monetary incentives. At the end of three months, the total amount of water usage for each household, in gallons, was measured.
(a) What would be the appropriate hypothesis test to use to test the claim that monetary incentives reduce water usage?
(b) Why would you use this appropriate hypothesis?
Wheel-Rite has agreed to ship the maximum number of wheel bearings that it produces each day to Itex when an order has been received.
Identify a business research topic and Define the research questions for the identified problem or opportunity
If the researcher computes the t-statistic to be 4.2 and t-value found in t table for df=60 and level of significance of 0.5, is 2.0 researcher would accept or reject null hypothesis.
A newspaper concluded that 92.5% of homes had either a computer or access to the Internet. Do you agree? Explain.
Does breast-feeding weaken bones? Breast-feeding mothers secrete calcium into their milk. Some of the calcium may come from their bones.
Let X., X 2 , • • • , X11 be a random sample from each of the following distributions involving the parameter 0. In each case find the m.l.e. of 8 and show that it is a sufficient statistic for 8 and hence a minimal sufficient statistic.
What values does X take on? For the given values of the random variable X, fill in the corresponding probabilities?
Suppose that the 33rd percentile of a normal distribution is equal to 656 and that the 97.5 percentile of this normal distribution is 896.
Suggest at least two additional summing functions that you can realize with this circuit. How would you realize a summing coefficient t hat is 0.5?
Can someone please help me understand how to use a standard normal table to find the positive critical value that corresponds to a tail area of 0.025.
Supposing that the entire $10,000 can be spent on tires (ignoring other costs), and that the true fraction that will fail is approximately .05, can NHTSA attain its goal while staying within the budget? Describe.
The cord is stretched to a tension T and its mass per unit length is p.
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