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Walmart recieves 2 shipments. Shipment 1 contains 30 women's slacks & 15 men's slacks. Shipment 2 contains 35 ladies slacks & 10 men's slacks. One shipment is chosen at random and a pair of slacks randomly selected. It is a pair of women's slacks. What is ithe probability it came from shipment 1?
A standard deviation of 36 donuts. If a sample of 16 stores results in a sample average of 249 donuts what is the standard error of the mean?
ABC Corporation has been using statistical process control for several months.
Does the data prove a significant difference in mean times?
Construct a confidence interval for the population proportion p, given n = 182, x = 135; 95%. Suppose the random variable X has a normal distribution with mean 9.0 and variance 49. The probability that X takes on a value of at least 18 is approxim..
Determine r.m.s. error for regression prediction of height at 18 from height at 6.
Solve the following questions involving fundamental operations on polynomials: Solve the following problems involving applicatins of polynomials:
A survey of licensed drivers inquired about running red lights. One question asked, "Of every ten motorists who run a red light, about how many do you think will be caught?"
Which is the probability of that the median of the sample or average medians be between 320 and 350 minutes?
Mr. James McWhinney, President of Daniel-James Financial Services, believes there is a relationship between the number of client contacts and the dollar amount of sales.
Which two types of probability sampling are best suited for business research and statistical data analysis, and why?
The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 5 hours. What percentage of bulbs has lifetimes that lie within 1 standard deviation of the mean on either side?
Suppose a bookie will give you $6 for every $1 you risk if you pick the winner in 3 ballgames. For every $1 bet, you either lose $1 or gain $6. What is the bookie's expected earnings per dollar wagered?
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