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What is the appropriate statistical analysis to use: t-test for two independent samples, t-test for two dependent samples, ANOVA, or chi-square test of independence? Please identify and explain why it is appropriate.
(a) 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.
(b) A study was conducted to see whether the mean weight loss is the same for 10 different weight loss programs. Each of the 10 programs had 50 subjects in it. The subjects were followed for 12 months. Weight change for each subject was recorded.
In 2009, the population of Hungary1 was approximated by P = 9.906(0.997)^t where P is in millions and t is in years since 2009. Assume the trend continues.
A Bond is currently traded at Rs.950. Its face value is Rs.1000. Coupon rate is 10%. It is redeemable at par after 5 years from today. However the company has an option of calling it after 3 years from today at 5% premium. Find Yield To Call.
Perform the test at the 5% level of significance using the p-value approach. You need not repeat the first three steps, already done in part (a).
A city official has stated that 20% of the items sold by pawn shops within the city have been stolen. Ralph has just purchased 4 items from one of the city's pawn shops.
What is the expected number of students who have registered on a pass/fail basis? What is the probability that more than three are registered on a pass/fail basis?
What is the length of the cash cycle? (Round answer to 0 decimal places, do not round intermediate calculations)
Write code that creates a Random object and then assigns a random integer in the range of 1 through 100 to the variable intRandomNumber.
(b) Which common bases can be used to completely remove a proton from acetone?
With the exponential function e^x and logarithmic function log x how do I graphically show the effect if x is doubled?
400 had college degrees, 100 were single, and 60 were single college graduates. The probability that an employee of the company is married and has a college degree is?
Describe a business situation, other than what has already been selected by fellow students or selected from the team assignment, where mean and standard deviation can be used in decision making.
Mental health among search and rescue workers. van der Velden, van Loon, Benight, and Eckhardt (2012) investigated whether search and rescue workers.
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