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The weekly amount spent for maintenance and repairs in a certain company has an approximately normal distribution with a mean of $600 and a standard deviation of $40. If $700 is budgeted to cover repairs for next week, what is the probability that the actual costs will exceed the budgeted amount?
Use the normal approximation to the binomial distribution and part (b) to answer the following question: What is the probability that a seat will be available for every person who shows up holding a reservation?
a committee of 8 consisting of 2 republicans 3 democrats and 3 independents is to be chosen from a group of 5
suppose a fast food restaurant wishes to estimate average sales volume for a new menu item. the restaurant has analyzed
Using the 0.99 confidence coefficient, what are the confidence limits for the proportion that plan to vote for the Democratic incumbent.
in my office we have 20 men and 35 women. the board of directors is going to appoint four new positions president vice
Suppose a random sample of 600 credit card users is taken. What is the probability that more than 150 credit card users are very close to the total limit on their card(s)?
The challenges that face education are very interesting indeed: unlike in manufacturing (where Six Sigma methodology was originally developed) the outcome is not a product that meets stated specifications, rather it is a student who is prepared to ta..
How many participants would be required to ensure that a 95% confidence interval for the mean difference in the number of drinks is within two drinks of the true mean? Assumed that the standard deviation of the difference in the mean number of dri..
Estimate the mean number of cars per household for the population of households in the neighborhood. Give the 95% confidence interval.
A random sample of 5 parks is selected and the number of acres is shown at alpha= 0.05, find the critical value. 944, 1036, 790, 5842,566
A survey asked tax accounting firms their business form (S = sole proprietorship, P = partnership, C = corporation) and type of risk insurance they carry (L = liability only, T = property loss only, B = both liability and property).
a confidence interval for a population mean has a margin of error of 0.047.a. determine the length of the confidence
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