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The number of hours spent online by college students is claimed to be 22.5 hours per week with a standard deviation of 2.1 hours.
(a) Suppose we randomly select 50 college students, what is the probability that the mean number of hours online is greater than 25.
(b) Suppose I survey the 50 game programming students and the mean number of hours spent online is 25 hours per week. Is this unusual? Why or why not?
Provide calculations to show that the Maximum profit based on the training data is $2.548 Million Provide calculations to show that the profit based on the training data is $0.154 Million, if 100,000 packages are mailed randomly to members.
if all cars in the usa ran with petrol blended with 20 bioethanol produced by enzymatic hydrolysis of cellulosic
What are the Chi-square results? What are the expected and the observed results that were found? Are they results of the Chi-Square significant? What do the results mean?
A sample of 23 European countries found that variance of life expectancy was 7.3 years. Determine the 95% confidence interval estimate for variance of life expectancy in Europe?
Tthe population standard deviation is not equal to 8 at the 0.05 level of significance. Calculate the value of the test statistic.
a computer terminal can pick up an erroneous signal from the keyboard that does not show up on the screen. this creates
Tar and NicotineEvery year the Federal Trade Commission (FTC) must report tar and nicotine levels in cigarettes to Congress. The FTC obtains the tar and nicotine levels in over 1200 brands of cigarettes. A random sample from those reported to Con..
Now consider the case in which the design standard deviation for the manufacturing process is speci?ed as σ = 0.9; compute the probability that any sample standard deviation will equal or exceed the observed value of S = 1.01 mm if the manufacturing ..
The mean pulse rate for males. Define the null and alternative hypothesis. SD= 18.48 pulse rate for males 25.07 women.
The city council of Pine Bluffs is considering increasing the number of police in an effort to reduce crime. Before making a final decision,
At other casinos, the dealer is required to take a hit on soft 17, but must stay on all other hands with a value of 17, 18, 19, 20, or 21. For this situation, determine the probability of the ending value of the dealer's hand.
First, answer the initial post in a thorough paragraph. Provide historical examples and cite your text, the video, and an outside source. Second, respond to one or more classmates in a thorough paragraph. Build on or refute their point(s) with hi..
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