The graph of the waiting time (in seconds) at a red light is shown below on the left with its mean and standard deviation. Assume that a sample size of 225 is drawn from the population. Decide which of the graphs labeled (a)-(c) would most closely resemble the sampling distribution of the sample means. Explain your reasoning. AP(X) 0.04- (*) o: =0.86 o.dP (*) o: = 12.9 (0P() o- = 12.9 0. 0.04- o= 12.9 = 16.5 Q 6.5 16.5 16.5 20 Time (in sec.) 50 50 Time (in sec.) 50 Time (in sec.) 50 Time (in sec.) Graph V most closely resembles the sampling distribution of the sample means, because p- and the graph (Type an integer or a decimal.) Rel. frequency Rel. frequency Rel. frequency Aouenbeji

The graph of the waiting time (in seconds) at a red light is shown below on the left with its mean and standard deviation. Assume that a sample size of 225 is drawn from the population. Decide which of the graphs labeled (a)-(c) would most closely resemble the sampling distribution of the sample means. Explain your reasoning. AP(X) 0.04- () o: =0.86 o.dP () o: = 12.9 (0P() o- = 12.9 0. 0.04- o= 12.9 = 16.5 Q 6.5 16.5 16.5 20 Time (in sec.) 50 50 Time (in sec.) 50 Time (in sec.) 50 Time (in sec.) Graph V most closely resembles the sampling distribution of the sample means, because p- and the graph (Type an integer or a decimal.) Rel. frequency Rel. frequency Rel. frequency Aouenbeji

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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You receive a brochure from a large university. The brochure indicates that the mean class size for full-time faculty is fewer than 31 students. You want to test this claim. You randomly select 18 classes taught by full-time faculty and determine the class size of each. The results are shown in the table below. At a = 0.10, can you support the university's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. 34 27 26 35 29 39 25 26 290 28 28 34 30 32 28 29 26 24 (a) Write the claim mathematically and identify Ho and Ha. Which of the following correctly states Ho and H3? O A. Ho: H= 31 B. Ho, μs 31 O c. Ho : μ= 3 Ha: H#31 Ha: u> 31 Ha: H31 OF. Ho: H231 Ha: u231 Ha: us 31 Ha: µ<31 (b) Use technology to find the P-value. P = (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Which of the following is correct? O A. Reject Ho because the P-value is less than the significance level. O B. Fail…
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You receive a brochure from a large university. The brochure indicates that the mean class size for full-time faculty is fewer than 31 students. You want to test this claim. You randomly select 18 classes taught by full-time faculty and determine the class size of each. The results are shown in the table below. At a = 0.05, can you support the university's claim? Complete parts (a) through (d) below. Assume the population is normally distributed Ha μ#31 33 26 (b) Use technology to find the P-value. 25 30 28 38 33 36 H₂ μ31 EN 25 28 310 24
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