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Calculate the mean of the following set of sample scores: 1, 3, 4, 6, 6.
a. Add a constant of 2 to each score. Calculate the mean for the new values. Generalize to answer the question, "What is the effect on the mean of adding a constant to each score?"
b. Subtract a constant of 2 from each score. Calculate the mean for the new values. Generalize to answer the question, "What is the effect on the mean of subtracting a constant from each score?"
c. Multiply each score by a constant of 2. Calculate the mean for the new values. Generalize to answer the question, "What is the effect on the mean of multiplying each score by a constant?"
d. Divide each score by a constant of 2. Calculate the mean for the new values. Generalize to answer the question, "What is the effect on the mean of dividing each score by a constant?"
A study was conducted to determine if there was a relationship between the prices a non-member of a club paid for various publications and the prices that a member paid for the same publications. The data gathered is shown below.
4 prizes of $350, & 1 prize of $1000. Assume that 15,000 lottery tickets are issued and sold for $1.00. What is the lottery's expected profit per ticket?
ACC 544 - What is the difference between a discrete probability distribution and a continuous probability distribution? Give your own example of each and describe the classical method of determining probability.
Find the probability that an arrival will have to wait.
HESC 349: Measurement and Statistics in Health Science - Complete the final project. Please organize your document neatly e.g. page break, tables, graphs, charts etc. to avoid point deductions.
According to a report by Scarborough Research, the average monthly household cellular phone bill is $73. Suppose local monthly household cell phone bills are normally distributed with a standard deviation of $11.35.
Find the critical t alpha/2 assuming the population is normally distributed, the confidence level is 95%, n=101 and sigma is unknown.
suppose a pitcher throws a fastball 80 of the time and a curveball 20 of the time. when its a fastball a home run is
a lending institution supplied the following data on loan approvals by four loan officers. use a 0.5 and test to
a manufacturer has designed a process to produce pipes that are 10 feet long. the distribution of the pipe length
Clark Heter is an industrial engineer at Lyons Products. He would like to determine whether there are more units produced on the afternoon shift than on the day shift.
A random sample of the price of gasoline from 20gas stations in a region gives the statistics below. Complete parts a) and b) ybar = $3.59, s = $0.24 a) Find a 95% confidence interval for the mean price of regular gasoline in that region. __, __ (R..
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