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A jar of peanut butter contains 451 grams with a standard deviation of 10.6 grams. Assuming a normal distribution, find the probability that a jar contains less than 448 grams.
To better understand eating patterns that might contribute to obesity, a researcher measures the average number of calories (per meal) consumed by shift worker.
Find the probability that the mp3 is defective. If the mp3 is defective what is the probability it came from Factory I? If the mp3 player is no defective, what is the probability that it came from factory II?
The other measurement is below 10, i.e. where high measurements tend to cancel low measurements. Use these possibilities to compute the distribution of when n = 2(i.e., find , , etc.).
Estimate the true proportion of unemployed workers and place bounds on the error of estimation. How many persons must be sampled to reduce the bound on the error of estimation to .02?
What is the average effect on annual salary of an extra year's experience for a 40-year-old employee? e. What is the average effect on annual salary?
Determine the probability that the average number of defects per bolt in the sample will be less than 5.5.
What do you conclude if the chi-squared statistic is smaller than the value in the chi-squared table?
Are boys more likely? We hear that newborn babies are more likely to be boys than girls. Is this true? A random sample of 25,468 firstborn children included.
An economist wants to estimate average annual profits for all businesses in a given community and proposes to draw a systematic sample of all businesses.
here is the data.131.15 135.69 130.91 124.54 129.64 128.77130.72 128.33 128.24 129.65 130.14 129.29128.71 129.00 129.39
Calculate the probability that more than two traffic tickets will be issued next month.
one box contains six red balls and four green balls and a second box contains seven red balls and three green balls. a
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