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In a survey of adults, 68% thought that DNA test for identifying an individual were very reliable. You randomly select 24 adults and ask each if he or she thinks DNA test for identifying an individual are very reliable.
a. Decide whether or not you can use the normal distribution to approximate the binomial distribution in this case. If so, find the mean and standard deviation, If not, explain why.
b. Find the probability that at most 15 people say DNA tests for identifying an individual are very reliable.
If one NBA player is selected at random, find the probability that this player is either 7 feet tall or weighs over 200 pounds.
If a college includes a minimum score of 1050 among its requirements, what percentage of females do not satisfy that requirement?
A recent article in theWall Street Journal reported that the prime rate for large banks now exceeds 9 percent. A sample of eight small banks in the Midwest revealed the following prime rates (in percent):
A nationwide sample of influential Republicans and Democrats was asked as part of a comprehensive survey whether they favored lowering environmental standards so that high-sulfur-coal could be burned in coal fired power plants.
A share tipping service claims that its selections give an average return of 10% if held for 12 months. An investor wants to investigate this claim and records the returns of the last 20 shares that have met the 12 month period.
Determine the probability that none of the calculators will be defective?
Standard deviation of 12 ounces. Find the probability of randomly selecting a newborn child whose weight is less than 107 ounces.
The famous YS Chang restaurant is open 24 hours a day. Waiters and busboys report for duty at 3am, 7am, 11am, 3pm, 7pm, or 11pm, and each works an 8 hour shift. The following table shows the minimum number of workers needed during the six periods ..
Fitting of simple linear regression equation - A researcher wishes to determine whether a person's age is related to the number of hours he or she jogs per week.
If the shop does not want to give more than 1% of its customers a free lube and oil change service, how long should the guarantee be?
The Skateworld Company operates ice rinks in several major cities throughout the United States. During each session of open skating, one customer is selected at random to receive a free pass for a future open skating session.
Estimate the number of cards in the sample for which Clara correctly guesses the suit by giving the mean of the relevant distribution (that is, the expectation of the relevant random variable). Do not round your response.
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