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Solve the problem using the normal curve approximation to the binomial distribution.
Two percent of hair dryers produced in a certain plant is defective. Estimate the probability that of 10,000 randomly selected hair dryers, exactly 225 are defective.
.0065
.0057
.0051
.0034
At the time she was hired as a server, beth was told, "you can average more than $20 a day in tips." Over the first 35 days she was employed at the resturant, the mean daily amount of her tips was $24.85, with a standard deviation of $3.24.
question the marketing manager of a larger supermarket chain would like to use shelf space to predict the sales of pet
What measure would you use and why? Make sure to provide enough detail about the situations so that others can understand your responses. Work as a correctional officer.
a marketing analyst at an internet book store is testing a new web design which hopes to increase sales. she wants to
A manufacturer produces a batch of memory chips (RAM) and measures the mean-time-between-failures (MTBF). The manufacturer then changes a manufacturing process and produces another batch and again measures the MTBF.
you are looking for a home in a particular neighborhood and you want to know the typical number of bathrooms and
a study indicates that in ca 36 of people ages 17 to 26 have at least one tattoo.you randomly sample 30 people in that
What decision should be made based on the minimax regret criterion?
If there are no large cost disadvantages, the data suggest that we should proceed. B) Technical issue: Does the treatment effect depend on the past average sales?
Compare and contrast a Difference of Means test with a Paired Difference test. What, fundamentally, are we testing for in each? When do you use the difference of means?
a sample of four tires is taken from a lot of brand-a tires. another sample of four tires is taken from a lot of
giving a test to a group of students the grades and gender are summarized
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