You may need to use the appropriate appendix table or technology to answer this question.Find the t value(s) for each of the following cases. (Round your answers to three decimal places.)(a) upper tail area of 0.025 with 12 degrees of freedom(b) lower tail area of 0.05 with 52 degrees of freedomesc(c) upper tail area of 0.01 with 30 degrees of freedom(d) where 90% of the area falls between these two t values with 29 degrees of freedom and both t values are the same distance from 0smaller valuelarger valueQ(e) where 95% of the area falls between these two t values with 45 degrees of freedom and both t values are the same distance from 0smaller valuelarger value7119-2W3OEOOOQ4R85%JATMacBook ProA6Y&7DWU8P&9cricutOOa

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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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Question 6 133 students at a college were asked whether they had completed their required English 101 course, and 85 students said "yes". Find the best point estimate for the proportion of students at the college who have completed their required English 101 course. Round to four decimal places. Submit Question
Find the t values for each of the following cases. b. Lower tail area of .05 with 50 degrees of freedom
For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. A random sample of 5616 physicians in Colorado showed that 3278 provided at least some charity care (i.e., treated poor people at no cost). A USE SALT (a) Let p represent the proportion of all Colorado physicians who provide some charity care. Find a point estimate for p. (Round your answer to four decimal places.) 0.5837 (b) Find a 99% confidence interval for p. (Round your answers to three decimal places.) lower limit 0.0617 upper limit
What's the equation for this question in Excel?
Joan's Nursery specializes in custom-designed landscaping for residential areas. The estimated labor cost associated with a particular landscaping proposal is based on the number of plantings of trees, shrubs, and so on to be used for the project. For cost estimating purposes, managers use two hours of labor time for the planting of a medium-sized tree. Actual times from a sample of 10 plantings during the past month follow (times in hours). 2.4 t (to 3 decimals) 2.8 Select your answer - 2.2 Ho : μ Select your answer - 2 Ha - Select your answer - ✪ 2 b. Compute the sample mean. (to 2 decimals) c. Compute the sample standard deviation. (to 4 decimals) d. Find the test statistic and p-value. (Use Table 2 in Appendix B.) ✪ 2.7 1.7 1.5 With a 0.05 level of significance, test to see whether the mean tree-planting time differs from two hours. a. State the null and alternative hypotheses. 1.6 2.4 2.6 3.1 p-value e. What is your conclusion? We - Select your answer-reject the null hypothesis.…
For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. A random sample of medical files is used to estimate the proportion p of all people who have blood type B. In USE SALT (a) If you have no preliminary estimate for p, how many medical files should you include in a random sample in order to be 85% sure that the point estimate p will be within a distance of 0.06 from p? Find the critical value for 85% confidence level, zo 85, and find the specified maximal error of estimate, E. (Round your answers to two decimal places.) Z0.85 E = Kour n = files (b) Answer part (a) if you use the preliminary estimate that about 10 out of 90 people have blood type B. (Round your proportions to three decimal places and your sample size up to the nearest whole number.) p = 1 - p = n = medical files
OL th.. Frequency 8 9 0 T 10 20 30 40 LEAD 50 60 70 80 Data were collected on the lead levels of children of battery factory workers. The data are displayed in the histogram above. Choose the correct answer. The maximum lead level is less than 60 The median lead level (the level that exactly half the children exceed) is less than 30 There are 33 children in the data set. None of the other answers is true
need help with only d, e, and f. I attached the rest of the problem for reference.
I'm not sure where is my mistake solving this problem. I have revised my calculation three times already and I'm not sure if the step to solve it is wrong or if it is my rounding the problem. Thank you for your help

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