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If B = "IBM's net profit will increase next year," identify the sample space and possible events that could occur. Use your judgment in arriving at an approximate probability for the event(s) and complement(s) you've identified.
the sugar content of the syrup in canned peaches is normally distributed. a random sample of n 10 cans yields a sample
(a) Find your total expected return. (b) Find the value of t that maximizes the total expected return.
You have $10,000 and want to invest $4,000 in Stock A, and $6,000 in Stock B. What is expected rate of return for A? What is the variance of A
for a normal distribution which distribution is used to test the claim that a population has a standard deviation equal
Suppose the waiting time at a traffic light has a uniform distribution from 0 to 20 seconds. Determine the probability of waiting exactly 12 seconds, less than 5 seconds, more than 10 seconds.
is lack of sleep causing traffic fatalities? a study conducted under the auspices of the national highway traffic
question 1new spark plugs have just been installed in a small airplane with a four-cylinder engine. there is one spark
You hold a ticket for the seventh game. What is the probability that you will get to use it? .answer 0.2765
random samples of 100 men and 100 women were collected from the 2008 general social survey with each person reporting
provide two data setsa. construct a scatterplotb. find the value of the linear correlation coefficient r then determine
Find the 99% confidence interval of the mean score for all golfers if this is a sample of 50 golfers instead of a sample of 35. Which confidence interval is larger and why?
Polls showed the two main candidates in 2004 presidential election were nearly tied on the day before the election. To predict the winner a newspaper would like to have a poll that has a margin of error of less than 1%.
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