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The World Health Organization's (W.H.O.) recommended daily minimum of calories is 2600 per individual. The average number of calories ingested per capita per day for the US is approximately 2460 with a standard deviation of 500. If we take a random sample of 36 individuals from the US, what is the probability that the sample mean exceeds the W.H.O. minimum?
a) 0.066
b) 0.076
c) 0.046
d) 0.026
e) 0.086
f) None of the above
A local fast-food restaurant has determined that 10% of drive-thru orders are filled incorrectly. Suppose 5 orders are randomly selected. What is the probability that more than one of the orders is filled incorrectly?
One set represents the weight before treatment. The other set represents the weight after treatment. In a case like this use a paired-sample t-test.
A member of Congress wants to determine her popularity in a certain part of the state. She indicates that the proportion of voters who will vote for her must be estimated within plus or minus 2 percent of the population proportion.
question a bed and breakfast breaks even every month if they book 30 rooms over the course of a month. their fixed cost
Three different methods for assembling a product were proposed by an industrial engineer. To investigate the number of units assembled correctly with each method
Balls that have been thoroughly mixed. Sue and Jim, each, purchased one gumball. What is the likelihood both Sue and Jim get red gumballs?
If he were to randomly select 120 corks from the next box, then how many of these corks would John expect to be undersized?
Inspection of student data generated during pre/post treatment surveys shows that among 10 subjects, 7 had higher scores after an experimental treatment
Medical tests were conducted to learn about drug-resistant tuberculosis. Of 142 cases tested in NJ, 9 were found to be drug-resistant. Of 268 cases tested in Tx, 5 were found to be drug-resistant.
In a group of six professors selected at random, what is the expected number of extroverts? What is the standard deviation of the distribution?
Show the odds of any two individuals having the same birthday are slightly greater than 1:1 (1:.9732 actually).
Let X bar be the average of n such independent measurements. Use Chebychev's inequality to estimate how large n should be such that P(|X bar - M |
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