Random sample from normal ditribution with mean
Assume X1...Xn is a random sample from normal ditribution with mean u and variance (sigma)^2=2.3. If we wish to find out u with accuarcy of +/-.01 with 95% of confidence, then what is the sample size?
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Express domain and range of ƒ. What does the answer mean on context of bronze? Determine formula in terms of x for ƒ(x).
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The spherical balloon is being inflated. Radius of balloon is increasing at a rate of 1 cm/s. Determine the Function f which models radius as the function of time.
The airplane is flying on the bearing of 285 degrees at 480 mph. The wind is blowing with bearing 265 degrees at 30 mph. Determine component form of velocity of plane.
The central limit theorem says if X1...Xn are random sample from unknown distribution with the mean u and variance σ^2, then X(bar) has approximately normal distribution with ( ) mean and ( ) variance if n is sufficiently large.
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Assume that you're to plan a survey of starting salaries for recent liberal arts major graduates from Penn State. From a pilot study you estimate that the standard deviation is about $8,000. What sample size do you need to have a margin of error e
A normal distribution has mean of µ = 100 with ? = 20. If one score is randomly chosen from this distribution, determine the probability that the score will have value between X = 90 and X = 120?
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