QuestionThe time taken by a student to finish a statistics examn can be modeled using the followingcumulative distribution function:F(x) =1-e 0, x>0Suppose that the time taken for a student to finish the exam is constant from student tostudent.Then the mean mumber (to the nearest whole mmber) of students who will finish the examin less than 1 hour for 12 students randomly selected is equal to:None of the other options8.6.7.Clast form

We need to find, the mean number of students who will finish the exam in less than 1 hour for 12…

Answered: Question The time taken by a student to…

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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I have computed the statistics of both groups of students in a class, in which they are male and female students. How do you sort the data within each group to determine what proportion in each group is within one standard deviation of that group, and what is the sorted data look like base on the statistics? Are the proportions similar?
Different students groups in a class of the Department of Chemistry were conducting labexperíments to determine changes in number of moles of chemical-A due to addition of different samples of chemical-B. They got the following results: 7.4. 8.7. 6.1. 1.6.7.9.1. 5.7. 9.8. 9.6. 4.9 Calculate the mean value of the data. D a. 8.39 O b. Non of the answer OC. 10.49 D d. 6.99 Different students groups in a class of the Department of Chemistry were conducting lab experiments to determine changes in number of moles of chemical-A due to addition of different samples of chemical-B. They got the following results: 75, 32, 78, 70, 50, 44, 50, 59, 50, 72, 55, 35, 32, 58, 32, 65, 68, 75, 52, 68 Calculate the sample standard deviation value of the data. Answer:
The following data gives the number of trips a family makes to the hos- pital and the number of children over five years of age in the family Children Over 5 Trips to the Hospital per Year 0 2 7 4 (a) Create a scatterplot of the data. े 0y (b) Calculate the mean number of children in the family 1
A process has a process capability ratio, C, =1.38, At some time the process seems to have a mean shifted left of the center. The process capability index,Cpk, is found to be 0.78, and the mean is left-shifted, that is the current mean is mess than the mean of the control chart. Determine the Z (UTL) with respect to the current left-shifted mean.
Q1/ Chose two only: Class 0-10 10-20 20-30 30-40 40-50 50-60 60-70 interval 95 Frequency A// Determine the cumulative frequency for the data above and draw the histogram. 30 60 40 20 10 B// Determine the mean for the data above. C// Determine the Harmonic Mean for the data below: 20 30 40 50 60 70 Frequency 3 6. 18 21 15 ******************************************************************* Class 10-20 20-30 30-40 40-50 50-60 60-70 interval 6. 8. |Frequency Q2/ A// Determine the Median for the data above. 3 4 10 B// Determine the Mode for the data above. ******************************************************************* Q3/ A//Determine the mean by using short- 60 61 62 63 64 65 60 cut method Frequency 8 12 14 9. 7 6. 8. B//Determine the Geometric Mean for the X 20 35 60 75 90 15 10 data. Frequency 4 3 3 1 6. ******************************************************************* Q4/ A / Calculate the Quartile Deviation (Q.D) and coefficient of Q.D. for the data: ( 230 , 620, 390, 350 , 320,…
21 a-d
1. The number of cars X, used for official business purposes on any given workday of two companies, A and B, are given below Company A X 2 3 f(x) .3 .4 3 Company B 2 3 4 f(x) Compare the 2 companies in terms of their mean number of cars and the standard deviation =V(X). b. Should the 2 companies maintain the same number of cars for official use? Explain with numerical support. .2 .3 .3 .1 а.
Growth spurt: it is generally known that boys grow at an unusually fast rate between the ages of about 12 and 14. Following are heights, in inches of 10 boys, measured at age 12 and again at age 14. Can you conclude that the mean increase in height differs from 5 inches? Let u1 represent the mean height at age 14 and ud= u1-u2. Use the a=0.01 level and the p-value method with the TI-84 calculator. Age12 58.1 63.3 61.2 64.5 55.9 60.4 57.8 68.3 63 64.4 Age14 63.3 69.6 66.4 69.2 62 65.7 62.8 73.6 67.7 69.2
Total plasma volume is important in determining the required plasma component in blood replacement therapy for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that a random sample of 50 male firefighters are tested and that they have a plasma volume sample mean of x = 37.5 ml/kg (milliliters plasma per kilogram body weight). Assume that ? = 7.20 ml/kg for the distribution of blood plasma.
Pavan.0.0
O DESCRIPTIVE STATISTICS Mean, median, and mode: Comparisons The total blood cholesterol level was measured for each of 21 adults. Here are the 21 measurements (in mg/dL). 132, 144, 151, 153, 165, 167, 176, 180, 184, 184, 184, 194, 195, 196, 196, 210, 211, 214, 219, 234, 241 Send data to calculator Send data to Excel Frequency 10 6. 8- 6+ 4 4 2- 150 175 200 225 250 125 Cholesterol level (in mg/dL) OMean (a) For these data, which measures of central tendency take more than one value? Choose all that apply. OMedian O Mode ONone of these measures (b) Suppose that the measurement 241 (the OMean largest measurement in the data set) were Median Check Explanation 2021 McGraw-Hl Education. All Righ II
Show your complete computation then answer what is being asked.

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