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Suppose that there are 63 boys assigned to the new drug group and 58 boys assigned to the placebo. Is there a statistically significant difference in the proportions of boys assigned to the treatments? Run the appropriate test at a 5% level of significance.
1. using the data collected from the student data survey at the beginning of the course construct a
for the data set below if you were to fit a regression equation what would the value of r2 be to two decimals? hint
What proportion of the variation in listing price is determined by variation in the square footage? What proportion of the variation in listing price is due to other factors?
Compute standard normal z-score corresponding to value of x = 23. e. Determine P(x 23). G. Determine P(16
In forecasting, MacDonald's Wing® discovered that when it opened its store to the public, it was able to sell 5,000 parachutes in the first year. Given the equation; y=a+bx. Where ‘y' represents the number of sales and ‘a' is the number they start..
A company must hire a new CFO and prepares a final list of five candidates - all are equally qualified. Two of the candidates are members of a minority of a minority group. To avoid bias in the selection of the candidate
Suppose that a random sample of nine recently sold houses in a certain city resulted in a sample mean price of $222,000, with a sample standard deviation of $22,000. Give a 95 percent upper confidence interval for the mean price of all recently ..
Could we estimate the effect of usd on prod with FE if the value of every country's currency (relative to the US dollar) remained the same over the sample time period? Why or why not? Please answer in 2-3 sentences.
What is the probability that exactly six application forms have been falsified? Would you expect this probability to be small or large? Explain.
suppose that two electronic components in the guidance system for a missile operate independently and that each has a
Find a value of p such that when 10,000 bits are received, the expected number of errors is at most 10 and Compute E(U(X)) and note for which values of k this converges. What property does U have for these values of k.
1 a sample of 100 flights for united airlines shows that 64 are on time. a sample of 100 flights for american shows
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