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a.) What is the probability of having 2 demands in a day? b.) What is the probability that at least 1 part is obtained from central stores? c.)) What is the probability that all three parts stocked
Use your calculator or other software to conduct a test of the hypothesis that mu=6 vs mu<6 for the following data. Give the p-value. 3 4 10 5 5 10 6 1 3 4
Use your calculator or other software to conduct a test of the hypothesis that mu=6 vs mu<6 for the following data. Give the p-value.
In the following data set, what percent of observations fall within one standard deviation of the mean?
The price of oranges each week in the Wal-Mart is normally distributed with a mean (µ) of 37.8 cents per pound and a standard deviation (?) is 3 cents. 1-What is the probability that oranges w
Calculate the price of a 5.2 percent coupon bond with 15 years left to maturity and a market interest rate of 9.0 percent. (Assume interest payments are semiannual.) (Do not round intermediate calcu
In a recent study, researchers followed 104,000 U.S. veterans who had served in the armed forces and a comparison group of 216,000 nonveterans. Over a period of 12 years, they found that 197 veteran
Which one (Ben or Frank) would you expect to have the greater standard deviation of temperatures, or would you expect the standard deviations to be very similar? Explain briefly.
The Statistical Abstract of the United States (2012, Table 16) indicates that there are 15,753,000 Californians between the ages of 25 and 55. Estimate with 95% confidence the number of Californians
A cement manufacturer claims that concrete prepared from his product has a relatively stable compressive strength and that the strength measured in kilograms per square centimeter (kg/cm2) has a var
What is the probability that the proportion of the offspring resulting from crossing will have red flowers is more than 60%? Construct a 99% confidence interval for the proportion of the red flowers o
If 35 healthy people are selected at random, construct a 99% confidence interval for the average temperature for these people. Would you consider an average temperature of 98.25 degrees to be an unli
Construct 90% confidence interval for the variance. Do these data present sufficient evidence to reject the manufacturer's claim?
You must report the null and alternative hypotheses, calculate the test statistic, and give the conclusion including a comparison to alpha or the critical value.
According to a recent survey, about 33% of Americans polled said that they would likely purchase reusable cloth bags for groceries in order to reduce plastic waste. Suppose 45 shoppers are intervie
According to a recent survey, about 33% of Americans polled said that they would likely purchase reusable cloth bags for groceries in order to reduce plastic waste. Suppose 45 shoppers are interview
What fraction of the pints of blood used do you expect were contaminated? Derive your answer both intuitively and using the algebra of probabilities.
In 2009, the number of feral Quaker Parrots living in Austin was 250. In 1992, there were only 15 feral Quaker Parrots. Let Q represent the number of feral Quaker Parrots at t years since 1990.
A manufacturer has designed a process to produce pipes that are 10 feet long. The distribution of the pipe length, however, is actually Uniform on the interval 10 feet to 10.57 feet. Assume that the
Formulate hypotheses that could be used to determine whether the percentage of Internet users in the two age groups differs from the overall average of 75%.
You decide to test the effectiveness using the drug and a placebo. You select a select a group of 500 subjects and randomly assign them to either the treatment group or the placebo group.
What is the average price of a house in Franklin County, OH? We took a random sample of 100 houses and found the average to be $120,128 and the standard deviation to be $50,324. Use the data to con
Assume that each vehicle passing a speed trap on I-44 between Rolla and St. Louis will be exceeding 90 MPH with probability 0.3. The state police will give a $200 ticket to each driver that surpasse