7:06iTECHork.potsdam.edu(b) The mean height of all adult Americanmales is 69 inches (5 ft 9 in). A researcherwonders if young American males betweenthe ages of 18 and 21 tend to be taller than69 inches. A random sample of 100 youngAmerican males ages 18 to 21 yielded asample mean of 71 inches.A. Ho = 71,: xB. Ho : μ = 71,c. Ho : μ69,=D. H₁ : x = 69,=69,E. Ho : μF. H。 : µ > 69,© 4G37% 5|||H₁ : <71a=H, :μHa µ<< 71Haμ> 69Ha> 69αHaμ69Ha : µ< 69(c) According to the Merck VeterinaryManual, the average resting heart rate for acertain type of sheep dog is 115 beats perminute (bpm). A Montana farmer notices hisaging sheep dog has been acting morelethargic than usual and wonders if her heartrate is slowing. He measures her heart rateon 15 occasions and finds a sample meanheart rate of 118.2 bpm.4A. Ho = 115,Ha> 115B. Ho : μ115,Ha:μ ‡ 115c. Ho : μ = 115,Ha:μ> 115D. H₂ : μ = 118.2, Haµ < 118.2E. Ho : μ115, Ha:µ< 115F. Ho : x = 118.2, H₁ : 118.2‡-

Population mean μ =69 NOTE:- According to bartleby guidelines expert can solve only one questions of…

Answered: (b) The mean heigh males is 69 inches…

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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To reduce bias, one should a. get a better instrument b. take the average of several measurements c. use rate rather than a count d. unbias your results
A variable is normally distributed with mean 17 and standard deviation 8. Use your graphing calculator to find each of the following areas. Write your answers in decimal form. Round to the nearest thousandth as needed. a) Find the area to the left of 16. b) Find the area to the left of 13. c) Find the area to the right of 15. d) Find the area to the right of 19. e) Find the area between 13 and 28.
For questions 6 through 11, refer to the following table, representing responses from the 2018 GSS: Respondent Sex Mean Hours Worked Last Week Standard Deviation N Male 44.60 14.969 670 Female 38.15 13.276 711 6. What proportion of females worked less than 40 hours per week? a. How many people in the sample does that correspond to?7. What percentage of males worked between 40 and 50 hours per week? a. How many people in the sample does that correspond to?8. What number of hours worked among females corresponds with a Z score of -2.00?9. Calculate the number of hours worked last week that corresponds to the 95th percentile for each sex. a. If you were going to calculate the 75th percentile, what Z value would you use? 10. Calculate the standard error for both males and females. a. What are you using for sigma, and why? 11. Calculate the 95% confidence interval for each sex. Can you say with 95% confidence that they are different? Why or why not? a. If you were…
A scale is known to be "low-calibrated" in that it measures an aluminum bar to be 4 grams lower than the actual weight. If ????μold is the mean of all possible measurements of the bar using the old calibration, and ????μnew is the mean of all possible measurements of the bar using a re-calibrated scale. It is desired that ????−????=4μnew−μold=4. Consider the test ?0:????−????=4H0:μnew−μold=4 vs. ?0:????−????≠4H0:μnew−μold≠4 Sample after calibration: mean is 95.8 , SD is 4.9 and sample size is 10 Sample before calibration: mean is 89.352 , SD is 4.2 and sample size is 62 We do not know population standard deviations. What is the p-value? (Hint: best to use software, or else the Desmos Calculator for the 2 sample T and Z test)
A variable is normally distributed with mean 15 and standard deviation 3. Use your graphing calculator to find each of the following areas. Write your answers in decimal form. Round to the nearest thousandth as needed. a) Find the area to the left of 14. b) Find the area to the left of 12. c) Find the area to the right of 13. d) Find the area to the right of 16. e) Find the area between 12 and 25. Question Help: D Post to forum Calculator Submit Question
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The geometrlc mean Is under O a. Measures of Location O b. None c. Measures of Scales O d. Measures of variation

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(b) The mean heigh males is 69 inches wonders if young A the ages of 18 and 69 inches. A randor American males ac sample mean of 71 A. Ho: x= 71 OB. Ho μ = 71 c. Ho : μ = 6. D. Ho 69 : x Ο = O E. Hou 69 =