A survey of 5,250 business travelers worldwide conducted by OAG Business Travel Lifestyle indicated that 91% of business travelers consider legroom the most important in-flight feature. (Angle of seat recline and food service were second and third, respectively.) Give a 95% confidence interval for the proportion of all business travelers who consider legroom the most important feature.
Answer to relevant QuestionsUse the following random sample of suitcase prices to construct a 90% confidence interval for the average suitcase price. $285, 110, 495, 119, 450, 125, 250, 320 The lengths of pins produced by an automatic lathe are normally distributed. A random sample of 20 pins gives a sample mean of 0.992 inch and a sample standard deviation of 0.013 inch. a. Give a 95% confidence interval for ...According to Shape, on the average, 1/2 cup of edamame beans contains 6 grams of protein. If this conclusion is based on a random sample of 50 half-cups of edamames and the sample standard deviation is 3 grams, construct a ...The calculated z for a hypothesis test is – 1.75. What is the p-value if the test is (a) Left-tailed, (b) Right-tailed, (c) Two-tailed? New software companies that create programs for World Wide Web applications believe that average staff age at these companies is 27. To test this two-tailed hypothesis, a random sample is collected: 41, 18, 25, 36, 26, 35, ...
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