Estimate the true proportion of home
A report states that 38% of home owners had a vegetable garden. How large a sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 4% with 95% confidence?
Expected delivery within 24 Hoursrs
A time study is made of a tool crib and it is found that the probability of it taking more than T minutes to fill an order is given by the expression e-0.2T. Customers are found to arrive at the tool crib at a Poisson rate of 10/hour. There is a s
What is the standard error of a sampling distribution when ? (sigma) = 24 and n = 144?
Regardless of your answer to the last question, suppose th p-value is 0.03. Which of the following is a correct conclusion based on this p-value? There is not enough evidence to indicate that the average body temperature of humans is 98.6 degrees.
You may have noticed that when the gradient or drop off is steep, the grains of sand tend to be larger. In fact, a man made beach with "wrong" size of granules of sand tend to be washed away and eventually replaced when the proper size grain is se
The reply has to be 300-400 words a) What are the characteristics of the standard normal distribution?
A fair coin is tossed three times. Let X be the number of heads that turn up on the first two tosses and Y be the number of heads that turn up on the third toss. Give the distribution of each of the following random variables: X, Y, X + Y, X ? Y.
A trucking firm delivers appliances for a large retail operation. The packages (or crates) have a mean weight of 300 lb. and a variance of 2209. (Give your answers correct to four decimal places.)
An unfair coin comes up heads 38% of the time. If the coin is flipped 12 times, what is the probability that it comes up heads no more than two times?
In rolling a die, the probability of obtaining 2, 3, or 4 in three statistically independent throws is?
Show all formulas and circle the appropriate answers. Show all six steps, use the p-value approach using the TI-83 or TI-84 calculator (except if chi-square test or correlation).
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