. Calculate the standard deviation for the following table giving the age distribution of542 members of the House of Commons :AgeNo. of Members26-30330-406140-5013250-6015360-7014070-805180–902Total542

Here given grouped data for age and no. Of member

Answered: . Calculate the standard deviation for

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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llustration 17.25. The income distribution of a group of 10,000 persons was found to be normal with mean Rs 750 p.m. and standard deviation Rs 50. What percentage of this group (i ) exceeding Rs 668 (ii ) exceeding Rs 832 ? had income
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4. /13. Show that mean deviation about mean is
Q P.15: According to a theater, about 8% of all people who buy a ticket to a performance arrive late. Find the mea and standard deviation of the number of people who are late if 300 tickets have been sold. A The mean is µ 300 · 0. 08 = 24. The standard deviation is o = v300 · 0. 08 · 0. 92 z 4. 70. В The mean is u = V300 · 0. 08 · 0. 92 2 4. 70. The standard deviation is o = 300 · 0. 08 = 24. The mean is µ 300 · 0. 08 · 0. 92 = 22. 08. The standard deviation is o = 300 · 0. 92 = 276. The mean is u = 300 · 0. 92 = 276. The standard deviation is o = 300 · 0. 08 · 0.92 = 22. 08. %3D E The mean is u 300 · 0. 08 = 24. The standard deviation is o = 300 · 0. 08 · 0. 92 = 22. 08. %3D
R2
Now you know the range and interquartile range for the age variable...but you are concerned because both of these measures of variability are flawed (in fact, you can easily list the drawbacks of each measure because you have studied so well!). So, you realize it is also important to check out the standard deviation.You use SPSS and find that the standard deviation for the age variable is ________. Enter your answer rounded to two decimal places (i.e., 10.11, not 10, not 10.1, not 10.110).
Rush
Which of the following statement is FALSE about X? ANOVA Source of variation df MS F stat P-value F crit Between Groups 5.2 a 2.6 Y 0.4177 3.8853 33.2 2.7667 Total 38.4 A. Within group variation В. Error C. Measure the variability between all group's mean and the grand mean. D. Measure the variability of the observed value around their respective group mean. А C D Answer
(Q12) The cerebral blood flow (CBF) in the brains of healthy people is normally distributed with mean of 74 and a standard deviation of 16. In a sample of 1000 people What is the proportion of healthy people will have CBF readings below 100? How many healthy people from the sample will have CBF readings between 60 and 80?
There are several sections of Statistics; some in the morning and some in the afternoon. We randomly select n1 40 from the morning section and 44 from the afternoon section. The averages n2 of their scores are X1 76.3 for the morning section and X, = 71.9 for the afternoon section. The known standard deviations of their scores are 01 12.05 for the morning section and 02 13.06 for the afternoon section. Test the claim that the average for all students in the morning and afternoon section is the same. Use a a = 0.05 significance level. a. What is the negative critical region? Give your answer to two decimal places. z c. What is the test statistic? Give your answer to two decimal places. z = d. Do we reject or fail to reject the null hypothesis? OReject Ho OFail to reject Họ
A population has a standard deviation ? of 25 units. (Give your answers correct to two decimal places.) (a) Find the standard error for the mean if n = 30.(b) Find the standard error for the mean if n = 46.(c) Find the standard error for the mean if n = 71.
Part C. To reduce the percentage of defective chips the company...

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