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A rainstorm in Portland, Oregon, wiped out the electricity in 10% of the households in the city. Suppose that a random sample of 70
Portland households is taken after the rainstorm.
John Rengel is the Quality Assurance Supervisor for Vino Supremo Vinyards. He knows that 10 percent of each box of corks is undersized.
68% it will rain tomorrow. What is the probability it will not rain tomorrow?
For an office in which 10 workers are employed, and considering these persons as a simple random sample of all U.S. office workers, what is the probability that the office will receive at least 160 fax messages next Wednesday?
Unlike the small logistics models presented here, real world logistics problems can be huge. Imagine the global problem a company like FedEx faces each day.
Based on a sample of restaurants in a large city, the frequencies are found to be f1 = 5, f2 = 8, f3 = 20, f4 = 32, and f5 = 23. What is the sample size, n? Verify that the sample mean is X‾ = 3.7.
Make a histogram to display the distribution of the numbers of text messages sent, and describe the distribution.
the sample standard deviations for two independent samples of size 20 each are 12 and 15. what is the estimate of the
the fill volume of an automated filling machine used for filling cans of carbonated beverage is normally distributed
lake wobegon junior college admits students only if they score above 400 on a standardize achievement test. applicants
1 every time you go to a beach for vacation you take home a little sand to keep as a souvenir. over your lifetime you
Do the data provide evidence that the alcohol signifiant increased (slowed) reaction time?use a one tailed test with o= .05 The date ____provide evidence that alcohol significant increased (slowed) reaction times as the value of the z-score is ____..
question assume that breast cancer affects .8 percent of the female population between 40 and 50 years of age. there
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