Question-2a. The data shown in the Table below are chemical process yield readings on 25 successive days.Calculate the sample mean, 16 % trimmed mean and standard deviation of the yield readings.94.1 87.3 63.2 90.6 88.2 86.1 95.1 86.6 86.1 90.4 89.1 94.6 96.394.7 91.1 85.4 84.2 88.3 82.9 83.6 85.1 97.3 88.2 93.1 87.6

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Answered: Question-2 a. The data shown in the…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Find the 10 % trimmed mean of the following data. If necessary, round to one more decimal place than the largest number of decimal places given in the data. Rate of Fatal Alcohol Impaired Car Crashes per 100 Million Vehicle Miles of Travel 0.45 0.61 0.29 0.33 0.38 0.44 0.54 0.54 0.58 0.60 0.47 0.65 0.47 0.49 0.71 0.72 0.50 0.50 0.76 0.76 0.78 Copy Data
The grade point averages (GPA) for 12 randomly selected college students are shown on the right. Complete parts (a) through (c) below. Assume the population is normally distributed. 2.4 3.4 2.7 1.8 0.9 4.0 2.2 1.1 3.6 0.4 2.1 3.1 (a) Find the sample mean. x=_____ (Round to two decimal places as needed.) (b) Find the sample standard deviation. s=_____ (Round to two decimal places as needed.) (c) Construct a 90% confidence interval for the population mean μ. A 90% confidence interval for the population mean is (__, __) (Round to two decimal places as needed.)
Using the population data set below, calculate the range, standard deviation, and variance. If necessary, round to two decimal places. 64.8 68 51.2 67.2 51.4 61 64.4 70.8 82.8 71 66.2 55 59 73.6 67.4 58.8 83.6 55.6 58 74.6 Range: Standard Deviation: Variance:
12. Stem and leaf Plot: (Sample )Variable: Gas $ Key: 12 = 1:2 1 : 2 2 : 3 : 4 : 5 : 55 6 : 7 : 88 8 : 9 12a. Use the above Stem and leaf plot and calculate the range. 12b. Use the above Stem and leaf plot and calculate the Quadratic Mean. 12c. Calculate the upper fence. 12d. Estimate the standard deviation.
Given Samples A and B below Sample A: 2.0 Sample B: 4.3 2.8 4.5 O a. Calculate the mean and standard deviation for each sample. Sample A: XA = Sample B: XB = ; SB = Round to two decimal places if necessary b. Calculate the coefficient of variation for each sample. Sample A: CVA = ; SA = _% 4.2 4.2 4.3 4.0 Sample B: CVB Round to two decimal places if necessary c. Which sample is more variable? o Sample A Sample B Neither sample is more variable than the other 4.4 4.3 3.7 4.9 _% 3.6 2.6 2.8 2.2 2.3 4.1
Given Samples A and B below, Sample A: 4.9 4.6 4.8 2.7 4.2 2.0 2.1 3.1 5.0 Sample B: 3.2 2.4 3.8 4.2 4.9 5.0 3.6 4.4 2.3 a. Calculate the mean and standard deviation for each sample. Sample A: X A = 0.00; s A = 0.00 Sample B: x B= 0.00 ; s B = 0.00 Round to two decimal places if necessary b. Calculate the coefficient of variation for each sample. Sample A: CV A = 0.00% Sample B: CV B = 0.00% Round to two decimal places if necessary c. Which sample is more variable? Sample A Sample B Neither sample is more variable than the other
Determine the 95% margin of error of the point estimate of the population mean.
Use no. 16 in table 2 whenever necessary. Indicate the steps in doing it on excel file.
Draw the normal curve using the data given b. x = 83. s = 6 a.x = 30. s = 8 %3D

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