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Seiko purchases watch stems in lots of 10,000. Seiko's sampling plan calls for checking 20 items, and if 3 or fewer are defective, the lot is accepted. Based upon their sampling plan, what is the probability that a lot of 10 percent defective will be accepted?
A public health researcher tested the hypothesis that providing new car buyers with child safety seats will also act as an incentive for parents to take other measures to protect their children
Write the example of statistics in news to explain the following statement which represents one of the objectives of statistics analysis: "Statistics assists us make decisions.
Patient does not have disease occurs 1% of the time. If a randomly selected individual is positive what is the probability that the individual has the disease?
What sample size would be needed for the estimate to be within 1.5 percentage points with 90% confidence if you do not have a prior estimate?
The president of an agency specializing in public opinion surveys claims that approximately 70% of all people to whom the agency sends questionnaires responds by filling out an returning the questionnaire.
Create one table that calculates summary measures of the change in test scores and income variables across all 80 schools.
Using the p- value approach, test the hypotheses at the 5% level of significance.
Given that a Brand A battery just failed, what is the expected value of the time we wait until the next Brand B failure?"
A random variable X has the Pareto (α, θ) distribution (where α > 0, θ > 0) if F_X(x) = 1 - (θ/(θ+x))^α for x ≥ 0. For a fixed d > 0, let Y = X-d | X >d. Calculate F_Y(y) and EY.
A person rolls a pair of six-sided dice, which are equally likely to come up any number from 1 to 6. If the person rolls a seven he gets $0.
Multiple choice questions based on regression - A regression and correlation analysis resulted in the following information
One more box is tested, and if that passes, all bulbs made that day will pass. Find probability that first box fails and second box passes.
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