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A survey of an urban university (population of 25,450) showed that 750 of 1,100 students sampled attended a home football game during the season. Using the 99% level of confidence, what is the confidence interval for the proportion of students attending a football game?
Find a 99% confidence interval for the true mean heart rate of all people with this untreated condition. Show your calculations.
The mean return for the random sample of 33 mutual funds is 14.93 percent with a standard deviation of 9.57. Test the null hypothesis: H0: mu = 15% at α = 0.05.
Benz-Merc Cars produces four classes of cars: subcompact, compact, intermediate and luxury. BM also produces trucks and vans. Vendor capacities limit total production capacity to at most 1.2 million vehicles per year.
To find out the alternate hypotheses also critical value. A truck dealer claims where a new model will give trouble free service for at least 15,000 miles.
for the following data xy806144364651sketch a scatterplot to show the relationship between x and y. what does the
Marks on statistics midterm test are normally distributed with mean of 78 and a standard deviation of 6. Determine the probability that class of 50 has average midterm mark that is less than 75?
Consider an acceptance-sampling scheme in which factory takes delivery of a batch of components if random sample of 400 components contains fewer than M defectives.
the manager of a computer software company wishes to study the number of hours junior executives by type of industry
Find the probability that a standard normal random variable will assume a value between: Find a z such that 70% of the area is above that value.
Find out the expected shape of distribution of sample mean?
in the instructors answer book for a mathematics text 8 of the answers are incorrect. use the poisson approximation to
Find out: The slack on all activities. The critical activities. The critical path.
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