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Suppose you are asked to list, in order of preference, the three best movies you have seen this year. If you saw 10 movies during the year, in how many ways can the three best be ranked? Is this a combination.
Do you view a chocolate bar as delicious or as fattening? Your attitude may depend on your gender. In a study of American college students, Rozin, Bauer, and Catanese (2003) examined the importance of food as a source of pleasure versus concerns a..
suppose that 75 of adult americans agree that while downloading music from the internet and then selling it is piracy
How to get original X variable in terms of the variance-covariance matrix for the regression coefficients pertaining to the transformed x variable? Y^=b0+b1x+b11x^2, x=X-mean(X), we get b0'=b0-b1mean(X)+b11(X^2),b1'=b1-2b1mean(X), b11'=b11
For each of the following sampling scenarios, determine which test statistic is appropriate to use when making inference statements about the population mean.
let x be the amount of premium gasoline in 1000 gallons that a service station has in its tanks at the beginning of a
question a survey of the opinions of property owners about a street widening project was taken to determine whether the
Approximately 34% of all university professors are extroverted Suppose you have classes with 5 Different professors. Find probability that 1 is extroverted? Find probability that 2 are extroverted.
according to the empirical rule if the data form a bell-shaped normal distribution percent of the observation will be
A test is normally distributed with a mean of 40 and a standard deviation of 7. (a) What score would be needed to be in the 85th percentile?
The cost accountant for Blue Pharmaceuticals has informed you that the company's materials quantity variance for the drug Allegro was exactly equal to its materials price variance for the year.
question five factories reported the following numbers of minor accidents in a year.factory12345number of
The mean weight was 2.9 pounds with standard deviation of .6 pounds find a 90% confidence interval for the population mean of the fall lobster.
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