For any problem where you use a preprogrammed TI function, you must writedown which function you use (complete name, not just something like "normal"because there are multiple normal functions), what values you enter (in order), andwhat the calculator produces. Round all probabilities to at least four decimalplaces.According to an article in the Journal of Anatomy (May, 2013), the ratio of thelength of a person's femur to the length of their tibia averages 1.23. Suppose thisratio is approximately normal with a mean of 1.23 and a standard deviation ofsigmab. What proportion of people have a ratio of b1 or more?sigma0.031b1c1c21.25 1.2187 1.266d190beta4.95e1f13.564 6.1875f214.058g125.7g270.9h133.47h258.06

The question is about continuous prob. distribution Given : Popl. mean of ration of length ( μ ) =…

Answered: For any problem where you use a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Do various occupational groups differ in their diets? A British study of this question compared 98 drivers and 83 conductors of London double-decker buses. The conductors' jobs require more physical activity. The article reporting the study gives the data as "Mean daily consumption (+ se)." Some of the study results appear below. Drivers Total calories 2821 +44 Alcohol (grams) 0.24 0.06 Conductors 2844 +48 0.39 ± 0.11 Construct a 99% confidence interval for the difference in mean daily alcohol consumption between drivers and conductors.
Suppose that the length of long distance phone calls, measured in minutes, is known to have an exponential distribution with the average length of a call equal to $24 minutes. The 16th percentile is a phone call that lasts minutes.
What is the z-score of x = 3 if it is 2 standard deviation to the left of the mean? -3 -2 1 O 2 1.
A random sample of 10 young men was taken and the heart rate (HR) of each young man was measured before and after taking a cup of caffeinated coffee. The results are (beats/min.) Use the information in the table to answer the questions.Subject HR before HR after1 68 74 2 64 68 3 52 60 4 76 72 5 78 76 6 62 68 7 66 72 8 76 76 9 78 8010 60 64a) Does caffeinated coffee have any effect on the heart rate of young men? Let level α = 0.05.b) As a public health specialist, write a brief report explaining your results above
A sample of n-4 scores has a mean of M-8. If one new score with a value of X - 3 is added to the sample. what will be the value for the new mean? OM-8 O Cannot be determined with the information provided OM-7 OM-875
A random sample of 10,000 bottles of cola was taken to see whether the mean weight was 16 fluid ounces, as marked on the container. The null hypothesis is that the population mean is 16 ounces. Use the read-out below to test the hypothesis that the colas do not have a population mean of 16 fluid ounces. You do not have to do any calculations; just interpret the given data clearly and thoroughly in the context of the problem. | One-Sample T: ounces Test of u = 16 vs = 16 Variable Mean StDev SE Mean 95 CI T P ounces 10000 15.9988 0.0985 0.0010 (15.9969, 16.0007) -1.21 0.225
Can you conclude that listening to music will decease the frequency of sleep attacks in narcoleptics at p=0.05?
In the population you are studying (people who live alone), there are 40% of men and 60% of women. If you know that the mean number of take-out dinners in a month for men is 15.1, and that the overall mean number of take-out dinners per month (for the population) is 13.4, then what is the mean number of take-out dinners in a month for women? Enter your answer rounded to one decimal place.
Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is 0.3. A sample of 42 U.S. adults is chosen. Use the TI-84 Plus Calculator as needed. Round the answer to at least four decimal places. Part 1 of 6 Is it appropriate to use the normal approximation to find the probability that more than 51% of the people in the sample have high blood pressure? ▼appropriate to use the normal curve, since xp = 12.6 > po It is and (1-P) = 29.4 Part 2 of 6 Find the probability that more than 51% of the people in this sample have high blood pressure. The probability that more than 51% of the people in this sample have high blood pressure is 0.0015 Part 3 of 6 10. A new sample of 81 adults is drawn. Find the probability that more than 42% of the people in this sample have high blood pressure. The probability that more than 42% of the people in this sample have high blood pressure is 0.0092 Part: 3 / 6…
A paper investigated the driving behavior of teenagers by observing their vehicles as they left a high school parking lot and then again at a site approximately mile from the school. Assume that it is reasonable to regard the teen drivers in this study as representative of the population of teen drivers. Amount by Which Speed Limit Was Exceeded Female Driver -0.1 0.4 1.1 0.7 1.1 1.2 0.1 0.9 0.5 0.5 (a) Use a .01 level of significance for any hypothesis tests. Data consistent with summary quantities appearing in the paper are given in the table. The measurements represent the difference between the observed vehicle speed and the posted speed limit (in miles per hour) for a sample of male teenage drivers and a sample of female teenage drivers. (Use males - females: Round your test statistic to two decimal places. Round your degrees of freedom down to the nearest whole number. Round your p-value to three decimal places.) t= df = P = Male Driver 1.4 1.2 0.9 2.1 0.7 1.3 3 1.3 0.6 2.1 (b) Do…
The Law of Large Numbers states that as the number of observations in a sample increases, the mean of this is sample becomes a. exactly equal to the mean. b. closer and closer to the population mean. c. close to 0. d. further and further from the population mean.
A foundation conducted a survey of physicians' attitude about health care reform, calling the report "a survey of 100,000 physicians." The survey was sent to 100,000 randomly selected physicians practicing in the United States: 38,000 via post-office mail and 62,000 via email. A total of 2,474 completed surveys were received. What is the rate of nonresponse for this survey? (Round your answer to two decimal places.)

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