Answered: Which degrees of freedom should be used…

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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Time left 0:4 From January to September, the mean number of car accidents per month was 630. From October to December, the mean was 1350 accidents per month. of The mean number of car accidents per month for the whole year was: a) 720 b) 675 c) 690 d) 810 e) 630
Glaucoma is a leading cause of blindness in the United States, N. Ehlers measured the difference in corneal thickness (in microns) between the two eyes of eight patients. Each patient had one eye that had glaucoma and one eye that was normal. The difference was measured as the corneal thickness of normal eye – corneal thickness of eye with Glaucoma. Corneal thickness is important because it can mask an accurate reading of eye pressure. Use ? = .05. Hypothesis: H0: μd=0Ha: μd≠0 Using output Test statistics : t=0.134P value=0.897 Degrees of freedom (df): df=7 Level of significance: α=0.05 Decision: P value > 0.05 thus we fails to reject null hypothesis. Question a)Write a report summarizing your findings. When writing the report consider that medical staff estimate that a difference of 4.5 microns or more could impact on their ability to interpret eye pressure correctly. b) Define for the hypothesis stated in part b) what a type 1 error and type 2 error would mean. Is it possible…
Answers are attached plz look at that
The given population is 3476, n = 528, what will be the value of e (margin of error)? Show clear solutions
For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. Santa Fe black-on-white is a type of pottery commonly found at archaeological excavations at a certain monument. At one excavation site a sample of 602 potsherds was found, of which 370 were identified as Santa Fe black-on-white. (a) Let p represent the proportion of Santa Fe black-on-white potsherds at the excavation site. Find a point estimate for p. (Round your answer to four decimal places.) (b) Find a 95% confidence interval for p. (Round your answers to three decimal places.) lower limit upper limit Give a brief statement of the meaning of the confidence interval. 95% of all confidence intervals would include the true proportion of potsherds. 5% of all confidence intervals would include the true proportion of potsherds. 95% of the confidence intervals created using this method would include the true proportion of potsherds. 5% of the confidence intervals…
cmid=855541&page=28 page n F5 Pat received the following grades in four classes. In Pat's History class, what is the percentage of students scoring higher than Pat? (round to two decimal places, don't include the % sign in your answer) % Subject Psychology Math History English Answer: F6 + W F7 Pat's Grade 75 90 86 83 W & F8 Class Mean 83 85 80 88 Pa F9 F10 Class Standard Deviation 8 6 4 A X F11 * F12 Home End Insert +1 Time left 1:35:4 Next page 12:54 PM *A*G 2/17/2023 Q T495S Delete Backspace
The value of SSR can never be larger than: Which? SST. 0.0. 1.0. 400. SSE.
Select one: a. 9.3400 b. 9.3920 c. 9.3924 d. 3.8494
Harper collected data on students who make appointments to see their advisor to see how many failed to show up. The student records were divided into two groups: male (group 1) and female (group 2). A 93% confidnece interval for pi – P2 was found to be as follows: (0.03, 0.09) Interpret the endpoints of this interval in the context of this problem. Do not use the word "difference" in your answer.
our p value is .03 and you chose your α level to be .05. What kind of error could you be making? a. Type I error b. Type II error c. Type I and Type II error d. Neither errors
Suppose the mean of X is 94. What does the mean of X become if you multiply X by 1.22? (Use two decimal places, ex: 12.34)
For n = 15 year-2017 model sedans whose horsepower is between 290 and 390, the following measurements give the time in seconds for the car to go from 0 to 60 mph: 4.8, 6.8, 6.0, 5.0, 6.3, 5.7, 5.8, 6.1, 5.5, 6.2, 4.9, 5.4, 5.1, 5.9, 5.6. The interval (Y1, Y7) could serve as a confidence interval for 1o.25. What is its confidence coefficient?

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Which degrees of freedom should be used for the following? Two-tailed, α = .05, N= 469 450 500 400 475