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A power station has a load cycle as under:260MW for 6hr; 200MW for 8hr; 160MW for 4hr; 100MW for 6hr. If the power station is equipped with 4 generating sets of 75MW each, calculate the load factor and the capacity factor from the above data.
Ignoring all other losses, what premium should the company charge to make an average net profit of 1.5% of the policy's face value?
Anorexia. The Journal of the American Medical Association reported on an experiment intended to see if the drug Prozac® could be used as a treatment.
Based on this information, construct the appropriate table of ANOVA summary findings and use the 0.05 level of significance in testing whether all of the treatment effects could be zero.
When the manufacturer advertises 5 times in a month and includes a $3 coupon, what is the expected sales?
the lifetime in hours of a certain kind of radio tube is a random variable with the probability density function given
In a two-tailed hypothesis testing at significance level α of 0.05, the test statistic is calculated as 2. If P(X >2) = 0.03, then we have sufficient evidence to reject the null hypothesis.
Do the association between the sizes of the heads and bodies of the two species appear to be strong? Explain.
Determine and interpret the p-value for the test. Source: Bureau of the Census, Statistical Abstract of the United States 2009, p. 163.
it is estimated that 68 of the voters in the city are against a new sales tax. if 20 voters are selected at random
A population standard deviation of 50 minutes. What percent of the population talk between 175 minutes and 245 minutes?
Sketch a standard Normal curve and mark this value of z on it. Find the P-value and shade the appropriate areas under the curve to illustrate your calculations.
The moment generating function of normal distributed random variable ,Y, with mean and variance .derive the moment generating function of X=-3Y+4.what is the distribution of X? why?
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