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A study concluded that waist to hip ratios are a better predictor of 5-year survival than more traditional height-to-weight ratios. The study concluded that for good health the waist size f a woman aged 50-69 should be less than or equal to 80% of her hip size, w<_ 0.80h. Make a graph showing possible waist and hip sizes for good health for women in this age group for which hip size is no more than 50 inches
What is the point estimator of the mean percentage of reservations that are cancelled on the day of the flight?
Determine a random number generator and make simulated data for not more than 25 participants (test subjects) in study using ranges of values for variables you established above.
It has been reported that the average US office worker receives 14 fax messages per day. For purposes of this exercise, we will assume that the daily number of fax messages is normally distributed with a standard deviation of 5.0 messages.
Describe a 5-step hypothesis test for two variances for a particular claim related to your work or life environment. You need to state the claim, define the null and alternate hypothesis, identify the test significance and the test statistic, and ..
Given that a respondent is over age 50, what is the probability that he or she gets news primarily from newspapers?
There are 3 radar stations and the probability of a single radar station detecting an enemy plane is 0.65. What is the probability of 2 stations detecting an enemy plane? Round your answer to nearest hundredth.
A fastener manufacturing company uses a chi-square goodness of fit test to determine if a population of all lengths of ¼ inch bolts it manufactures is distributed according to a normal distribution.
Using the Hypothesis Tests Two Sample file and a .05 significance level, test whether there is a difference in the mean salary for men versus women.
At the .05 level of significance, can we conclude that those joining Weight Reducers on average will lose less than 10 pounds? Determine the p-value.
A national survey of restaurant employees found that 75% said work stress had a negative impact on their personal lives. A sample of 100 employees from a popular restaurant chain finds that 68 answer
Determine the probability that a randomly selected exam will have a score of at least 71? What percentage of exams will have scores between 89 and 92?
Assume 1.5% of antennas on new Nokia cell phones are imperfect. For random sample of 200 antennas, determine the probability that: None of the antennas is defective.
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