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In a batch of 8000 Clock radio 5% are defective. A sample of 14 clock radios is randomly selected without replacement from the 8000 and tested. The entire batch will be rejected if at least one of those tested is defective. What is the probability that the entire batch will be rejected? Assume independence.
Frequently, tests that yield abnormal results are repeated for confirmation. What is the probability that for a normal person a test will be at least 1.5 times as high as the upper limit of normal on two separate occasions?
What is the probability an applicant does not pass the test and is a sucessful manager?
The January 17, 1994 issue of Time magazine reported that 58% of adult Americans said yes to the question "If you or your spouse were pregnant, would you want the unborn child tested for genetic defects?"
Is there sufficient evidence at the 0.05 level of significance to conclude that the proportion of women physicians at the university health system exceeds 27.9%?
Determine the area under the standard normal curve between z = 0 and z = 3. Determine the area under the standard normal curve to the right of z = 1. Determine the area under the stanard normal curve to the left of z = 1.5
Types of digital cameras are equal, is there evidence of a difference in the mean battery life between the two types of digital cameras at the 95% confidence level?
A recent study found that the average life expectancy of a person living in Africa is 53 years with a standard deviation of 7.5 years. If a person in Africa is selected at random
Exponential distribution with a mean of 4 minutes. What is the probability that a person is served in less than 3 minutes on at least 4 of the next 6 days.
Could you explain the Pearson or product-moment correlation? If we were to use a partial correlation, would you want to look at the relationship between two variables while removing the effect of one or two other variables?
In a normal distribution with mean 3 and variance 49, what are the upper and lower limit scores for the middle 50% of the data?
What is the probability that a randomly selected student has an ACT Math score less than18? What is the probability that a random sample of 10 ACT test takers had a mean ACT Math score less than 18?
A survey of magazine subscribers showed that 55.8% rented a car during the last 12 months for business reasons, 44% rented a car for personal reasons, and 25% rented a car for both business and personal reasons.
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