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Let X1,..., Xn be a random sample from a population with the mean μ. What condition must be imposed on the constants c1, c2,..., cn so that c1X1 + c2X2 + ··· + cnXn is an unbiased estimator of μ?
suppose you have a bag with five tickets labeled 1224 and 8. the experiment is to draw two tickets from the bag with
it is generally believed that electrical problems affect about 14 of new cars. an automobile mechanic conducts
companies that sell stock mutual funds charge their investors expense fees to offset the costs of research and
Give all steps of a test of the hypothesis that the corresponding population proportions are equal.
tossing for astragali was the most popular game of the chance in roman times. many throws of one present-day astragalus
The sums of squares appear in the following ANOVA summary table. The mean for each condition and the condition and the number of subjects precondition are also noted.
Use a 0.01 significance level to test the claim that the selection process is biased against Americans of Mexican ancestry. Does the jury system appear to be fair?
Find the stationary distribution of the Markov chain.
The average number of television sets in the sample households turns out to be 1.86, and the SD is 0.86. Find a 95% confidence interval for the average number of television sets per household.
what is the probability that the next subgroup average will fall outside the control limits? On average, how many subgroups will have to be looked at in order to detect this shift?
find the following z-scores for the standard normal distribution. round to three decimal places.1. z0.152.
discuss the implications of magnitude from 0 to 1 sign or - and probability versus causality for the correlation
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