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A consultant is beginning work on three projects. The expected profits from these projects are $50,000, $72,000, and $40,000. The associated standard deviations are $10,000, $12,000, and $9,000. Assuming independence of outcomes, find the mean and standard deviation of the consultant's total profit from these three projects.
Can the researcher conclude that humidity has a significant effect on eating behavior? Use a two-tailed test with α=.05. Compute the estimated d and r2 to measure the size of the treatment effect.
A group of students collected data at the Cedar Point amusement park and reported that the "wait time" to ride the "Top Thrill Dragster" roller coaster is consistently distributed within a range of 40 minutes to 90 minutes.
How many, if 2 of the men refuse to serve together? = 56 (c): How many, if 2 of the women refuse to serve together? = 50 (d): How many, if 1 man and 1 woman refuse to serve together?
At.05 significance level, can we conclude that larger proportion of the agents think the economy is expanding this month?
Write the hypothesis statement. What distribution are you using?
correlations chirps per secondground temperature in f chirps per secondpearson correlation1.836 sig. 2-tailed .000 n15
in studying the occurence of genetic characteristics the following sample data were obtained. at the 0.05 significance
find the probabality that at most 55 will be defective and find the probability that between 50 and 66 will be defective
A complete census taken at the university a few years prior indicated a mean age of 22.4 years with a standard deviation of 7.6 years. Test the null hypothesis at the .05 level.
let y be b192p. we rehect h0p0.75 and accept h1 pgt0.75 if and only if ygt152. use the normal approx to determine.a
When the p-value is used for hypothesis testing, the null hypothesis is rejected if
a machine consists of two components whose lifetimes have the joint density function fxy 150 for xgt0 ygt0 xylt10. the
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