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If the standard deviation of a set of scores =0, what can you say about the scores in the distribution? Verify your answer using an example. Create an appropriate set of numbers and actually calculate the SD (standard deviation), showing that it indeed equals 0. Show your work.
How large sample size must be taken to be 95% confident.
the indicator that results in total revenues being equal to total cost is called
The engineer collects a random sample of items and ?nds that 5 out of the 16 items in the sample are defective. Find the engineer's posterior probability distribution of the proportion of defective items.
Many people think that job satisfaction in workplace is directly related to annual income. To check the validity of this assumption survey of 430 active working adults in U.S was taken that relates their job satisfaction to their annual income.
Find the margin of error in estimating the population mean: confidence level = 94%; sample size=86; sample mean = 113.5; and standard deviation = 12.7.
The investor would like to maximize the return on the investment, but the average risk index of the investment should not be higher than 6. How much should be invested in each stock? What is the average risk for this investment? What is the estima..
These 64 students will spend a combined total of more tahn $715.21? What is the probability that these 64 students will spend a combined total between $703.59 and $728.45?
Mr. X invites 15 relatives to a party: his mother, three uncles, two aunts, four brothers, and five cousins. If the chances of any one guest arriving first are equally likely
GDP growth, part 2. From the linear model fit to the data on GDP growth in Exercise 45. a) Write the equation of the regression line. b) What is the meaning of the intercept? Does it make sense in this context?
Compute the probability that a random sample of 50 infants born at full term results in a sample mean of less than 3500 grams.
you plan to develop a new software system that you believe will surpass the success of google and facebook combined. in
Explain the logic of what you have done, writing as if you are speaking to someone who has never heard of correlation (but who does understand the mean, deviation scores, and hypothesis testing);
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