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To do so you randomly surveyed 1000 men and 1200 women. 100 men responded that they were members of the Tea Party. 95 women responded that they were members of the Tea Party. What is the p-value fo
To avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. To avoid losing money, it labels the top 5% (the heaviest 5%) overweigh
What is the probability that between 10:00 and 10:30 the switchboard will receive more than 9 calls but fewer than 15 calls?
One state lottery has 225 prizes of$1.00, 100 prizes of $5.00, 40 prizes of $25.00, 14 prizes of $100, 4 prizes of $350, & 1 prize of $1000. Assume that 15,000 lottery tickets are issued and so
On a certain daily flight, Air Northeast has a policy of booking as many as 21 people on an airplane that can seat only 16. (Past studies have revealed that only 92% of the booked passengers actual
Would a stacked column chart be appropriate for graphing male median income in 2009 dollars and female median income in 2009 dollars (both on the same graph)? Explain your answer.
School Enrollment of all -5 year old children, 56% are enrolled in school. if a sample of 500 such children is randomly selected, find the probability that at least 250 will be enrolled in school.
The fill weight of a certain brand of adult cereal is normally distributed with a mean of 910 grams and a standard deviation of 10 grams. If we select one box of cereal at random from this populati
A poll found that 329 out of 763 adults said they would travel to outer space in their lifetime, given the chance. Estimate the true proportion of adults who would like to travel to outer space with
Assuming that the heights of college women are normally distributed with mean 62 inches and standard deviation 3.5 inches, what percentage of women are between 58.5 inches and 72.5 inches?
An average computer mouse inspector can inspect 50 mice per hour. the 48 computer mice inspectors at a particular factory can only inspect 46 mice per hour with a standard deviation of 10. At alpha
How many women must be randomly selected to estimate the mean weight of women in one age group. We want 90% confidence that the sample mean is within 3.7 lb of the population mean, and the populatio
A random sample of 50 people who joined the new weight reduction program revealed the mean loss to be 9 pounds. At the .05 level of significance, can we conclude that those joining Weight Reducers o
Construct a 95 percent confidence interval for the population proportion of positive drug tests.
Approximately 30% of obese patients develop diabetes. If a physician sees 10 patients who are obese, What is the probability that half of them will develop diabetes?
A die is loaded in such a way that the probability of each face turning up is proportional to the number of dots on that face. (For example, a six is three times as probable as a two.) What is the
find the probability that exactly 7 of the 10 consumers recognize the brand name. Also find the probability that the number who recognize the brand name is not 7.
1. Under what conditions should you use the McNemar test? 2. What is a nonparametric procedure? Describe specifically when you would utilize a nonparametric test.
In order to be accepted a student must score within the top 5%. Given that the test has a mean of 1000 and a standard deviation of 200 what is the lowest possible score needed for acceptance?
Identify a research hypothesis, dependent/independent variables, and a method for selecting subjects for a study of a new single pill treatment for AIDS in comparison to a multi-drug regimen. Word
Construct and fill in a contigency table summarizing the credit card data. Employ the following pairs of events: M and M, V and V.
If appropriate, use the Tukey-Kramer multiple comparisons procedure to determine which file sizes significantly differ with respect to mean access read time. Test at the 95% confidence level.
Jim buys his school supplies in bulk. He bought 5 red pens at $1.29 each, 3 blue pens at $1.49 ea, 6 green pens at $1.79 and 9 black pens at $.99 ea. what was the average cost of a pen?
The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 107 inches, And a standard deviation of 10 inches. What is the probability that the mean annual
Among those students who do not complete their assignments, 50 percent will pass. Mike Fishbone took statistics last semester from Dr. Yes and received a passing grade. What is the probability he co