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A sample mean distribution with sample sizes of 100 are drawn from a population with a mean of 80 and standard deviation of 15. What is the probability a sample mean will be greater than 81.8?
A sample mean distribution with sample sizes of 100 are drawn from a population with a mean of 80 and standard deviation of 15. What is the probability a sample mean will be greater than 81.8 ?
if npgt and nqgt5 estimate pmore than 4 with n12 and p0.7 by using the normal distribution as an approximation to the
Sample heights of 10 year old children from a pilot study are listed below. Using a 95% confidence interval, what sample size should be used?
What is the 10th percentile of serum concentration of free T3 among people between the ages of 30 and 60? Round to three decimal places.
question suppose that x xijnx2 is an observed data matrix from a bivariate normal distribution nmusigma2i where i is
Consider flipping two independent fair coins. Let X be the number of heads that appear. Compute P(X=x) for all real numbers x.
What's the standard error of the difference in the two proportions?- Construct a 95% confidence interval for this difference.
Johnson is employed by the General Services Administration, and everyone knows that the GSA is the most inefficient branch of the government.
Which of the following are the appropriate hypotheses in this case?
Using a 0.01 level of significance, test if there is a difference in productivity level. What are the correct hypotheses for this problem?
Suppose that the probability of strong demand is 0.8 and the probability of weak demand is 0.2. What is the optimal decision using the expected value approach?
A spring-mass-damper system is shown in Figure AP8.1 (a).The Bode diagram obtained by experimental means using a sinusoidal forcing function is shown in Figure AP8.1 (b). Determine the numerical values of m, b, and k.
All commodity traders are gamblers who risk sudden disaster. Therefore, all gamblers who risk sudden disaster are commodity traders.
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