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A market research firm has distributed samples of a new shampoo to a variety of individuals.
The following data summarize the comments of these individuals about the shampoo as well as provide the age group into which they fall.
Use the 5 percent level of significance, these data prove that different age groups have different opinions about the shampoo.
Find the optimal order quantity.
suppose for each student in a large statistics class you record how far shehe sits from the teacher during a
the weights of a fish in a certain pond that is regularly stocked are considered to be normally distributed with a mean
identify a peer-reviewed journal article health based published in the last 5 years that applies the central limit
The university policy department must write, on average, five tickets per day to keep department revenues at budgeted levels. Suppose the number of tickets written per day follows a Poisson distribution with mean of 6.5 tickets per day. Interpret ..
suppose the historical average work week was 39.2 hours and sd was 4.8 hours as reported by the department of labor.
fourth group was divided into small discussion groups. A high of 10 was possible. A sample of five tests was selected from each group. The test grade results were: At the 0.01 level, what is the critical value?
If four students are to be randomly selected from this group, find the probability that exactly two undergraduates will be among the four chosen.
In addition parking time variable collected by the administration is an example of a ___________ random variable and parking are variable is an example of a ____________ random variable.
If I had 6600 wigets, how many do I have to test with 0 failures to show 95% of them are acceptable with a 95% confidence?
repair costs computers in a random sample of 11 computers the mean repair cost was 127.50 and the standard deviation
The data for the cats, you realize that if you now include data from one more cat, Redbeard, the mean whisker length of the cats becomes 10.514 cm. What was Redbeard's mean whisker length?
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