N<-3.43.3<<-3.2<-3.1-3.0-2.92.8-2.7-2.62.5<-2.4<-2.3-2.2<-2.1<-2.01.91.81.71.61.5<-1.4-1.3-1.2-1.11.0-0.9-0.8-0.7-0.6-0.5-0.4-0.3-0.2-0.1-0.0.00.0003.0005.0007.0010.0013.0019.0026.0035.0047.0062.0082.0107.0139.0179.02280287.0359.04460548.0668.0808.0968115113571587.18412119.2420.2743.3085.3446.38214207.4602.5000.01.0003.0005.0007.0009.0013.0018.0025.0034.0045.0060.0080.0104.0136.0174.0222.0281.0351.0436.0537.0655.0793.0951.1131.1335.1562.1814.2090.2389.2709.3050.3409.3783.41684562.4960.02.0003.0005.0006.0009.0013.0018.0024.0033.0044.0059.0078.01020132.0170.0217.0274.0344.04270526.0643.0778.0934.1112.1314.1539.17882061.2358.2676.3015337237454129.4522.4920.03.0003.0004.0006.0009.0012.0017.0023.0032.0043.0057.0075.00990129.01660212.0268.0336.0418.0516.0630.0764.0918.1093.1292.1515.176220332327.264329813336.370740904483.4880.04.0003.0004.0006.0008.0012.0016.0023.0031.0041.0055.0073.0096.0125.01620207.0262.0329.0409.0505.06180749.0901.1075.127114921736.2005.2296.26112946.3300.36694052.4443.4840.05.0003.0004.0006.0008.0011.0016.0022.0030.0040.0054.0071.00940122.0158.0202.0256.0322.0401€0495.0606.0735.0885.10561251.1469.1711.1977.22662578.2912.3264.36324013.4404.4801.06.0003.0004.0006.0008.0011.0015.0021.0029.0039.0052.0069.00910119.0154.0197.0250.0314.0392.0485059407210869.1038.1230.1446168.1949.2236.254628773228.35943974.4364.4761.07.0003.0004.0005.0008.0011.0015.0021.0028.0038.0051.0068.0089.0116.0150.01920244.0307.0384.0475.0582.07080853.1020.1210.1423.1660.1922.220625142843.3192.35573936.4325.4721.08.0003.0004.0005.0007.0010.0014.0020.0027.0037.0049.0066.00870113.0146.0188.0239.0301.0375.0465.05710694.0838.1003.1190.1401.1635.1894217724832810.3156.35203897.42864681.09.0002.0003.0005.0007.0010.0014.0019.0026.0036.0048.0064.00840110.0143.018302330294.0367.0455.0559.0681.0823.09851170137916111867.2148.2451.2776.3121.3483.385942474641 The distribution of course grades in a very large class is (approximately) Normal with mean 48 and standard deviation14. The minimum possible grade is 0 and the maximum possible grade is 120. A grade of 60 or more is required to passthe course. The course instructor is considering the possibility of a "bell curve" that will increase the mean grade to 77and decrease the standard deviation to 6. Suppose the instructor will toss a fair or balanced coin to decide what to doand will use the bell curve only if the coin comes up heads. What is the probability that the student at the 50-thpercentile will pass the course?

Given Information: Consider the variable X as the course grades which is normally distributed with a…

Answered: The distribution of course grades in 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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Suppose you received a score of 95 out of 100on exam 11 . The mean was 79and the standard deviation was 8 . If your score on exam 2 is 90out of 100, and the mean was 60with a standard deviation of 15, then you did:
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Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout. Suppose a friend tells you that the average length of trout caught in Pyramid Lake is ? = 19 inches. However, a survey reported that of a random sample of 51 fish caught, the mean length was x = 18.6 inches, with estimated standard deviation s = 3.5 inches. Do these data indicate that the average length of a trout caught in Pyramid Lake is less than ? = 19 inches? Use ? = 0.05. (a)What is the level of significance? =__ State the null and alternate hypotheses. A-H0: ? = 19 in; H1: ? ≠ 19 in B-H0: ? < 19 in; H1: ? = 19 in C-H0: ? = 19 in; H1: ? < 19 in D-H0: ? = 19 in; H1: ? > 19 in E-H0: ? > 19 in; H1: ? = 19 in (b)What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. A-The Student's t, since the sample size is large and ? is known. B-The standard normal, since the sample size is large and ? is known. C-The…
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