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How does sampling distribution from an area such as business, and sports, used in marketing
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The time to complete 1 construction project for company A is exponentially distributed with a mean of 1 year. Therefore: (a) What is the probability that a project will be finished in one and half years? (b) What is the ...
In a health club, research shows that on average, patrons spend an average of 42.5 minutes on the treadmill, with a standard deviation of 4.8 minutes. It is assumed that this is a normally distributed variable. Find the ...
The average price of a television on a certain Web site is ?$770. Assume the price of these televisions follows the normal distribution with a standard deviation of ?$170. Complete parts a through d below. a. What is th ...
When circuit boards used in the manufacture of compact disc players are tested, the long run percentage of defectives is 5%. Let X= the number of defective boards in random sample of size n=25, so X ~ Bin( 25, .05). a) ...
Large purple dress INC. HAS SOME BOND OUTSTANDING WITH A 6.25% COUPON AND FOUR YEARS REMAINING UNTIL maturity. Since these bond were issued, interest rates has increased, these bonds are now trading at a 7.375% YTM. Reme ...
What is the theory behind callable bonds and when are they most likely to be called?
The caloric consumption of 44 adults was measured and found to average 2,113. Assume the population standard deviation is 270 calories per day. Construct confidence intervals to estimate the mean number of calories consu ...
In a club with 9 male and 10 female? members, a 4?-member committee will be randomly chosen. Find the probability that the committee contains at least 3 women.
In a survey of 400 adults that say traffic is a problem: East reported 36% is a problem, South 33% problem, Midwest 26% problem and West 55% problem. (a) The 95% confidence interval for the proportion from the West say t ...
Retail stores experience their heaviest returns on December 26th and December 27th each year. The distribution for the Number of Items Returned (X) for Hilldale Macy's on those days last year is given in the table below. ...
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