Homework Answers
We know, Variance =
.
So, Variance of Company A = = 1600.
(Ans).
Similarly variance of company B = = 400.
Since, variance is a measure of dispersion and Company A has higher variance, so, company A has larger dispersion. (Ans).
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how
do I find the variance for company A? and how do i find which
company...
Use the information in the following table for the next few questions. The following statistics represent...
Use the information in the following table for the next few questions. The following statistics represent samples of copper wire submitted by two companies for tensile strength testing (psi). Statistic Company A Company B Arithmetic Mean 500 600 Median 500 500 Mode 500 300 Standard Deviation 40 ...
Use the information in the following table for the next few questions. The following statistics represent...
Use the information in the following table for the next few questions. The following statistics represent samples of copper wire submitted by two companies for tensile strength testing (psi). Statistic Company A Company B Arithmetic Mean 500 600 Median 500 500 Mode 500 300 Standard Deviation 40 20 Mean Absolute Deviation 32 16 Quartile Deviation 25 14 Range 240 120 Sample Size 100 80 1. The middle 95% of the wires from Company A tested between _____ and _____ ....
1. How would you interpret correlation coefficient of: -0.95? A. Not a good correlation measure B....
1. How would you interpret correlation coefficient of: -0.95? A. Not a good correlation measure B. Week negative correlation C. Strong negative correlatio D. Not enough information to determine correlation 2. What statistical measures are used for describing dispersion in data? How do they differ from one another? A. Range, variance, and standard deviation B. Mean absolute deviation C. Mean, median, and mode D. Mean, standard deviation, and interquartile range 3. What is the difference between a population and a...
How do you find the standard deviation of a data set of numbers? I know the...
How do you find the standard deviation of a data set of numbers? I know the median, and the upper and lower quartile numbers. I am making a box plot and need to know how to graph that on a box plot as well. For example let us say the numbers are 1,2,3,4,5,6,7,8,9. How would you find the standard deviation?
4. (10pts)For each of the data set below, find the mean (i) and standard (1) (4pts)...
4. (10pts)For each of the data set below, find the mean (i) and standard (1) (4pts) 10 (2) (4pts) 20 18 16 12 14 (3) (2pts) From the results of (1) and (2), what do you think the standard deviation is for the numbers (101, 103, 105, 107, 109)? (In generol, ony S consecutive even numbers or s numbers should have exactly the same stondard deviation, since their spread are of 2 (6pts) Mean is a measure of the center...
i need both questions answer there are 2 sets of questions named as 2 1st set...
i need both questions answer
there are 2 sets of questions named as 2
1st set i wrote as 1st question and
2nd set i wrote as 2nd question and in each question sets
there are 2 question and each question contains 2 sub-questions iam
attaching down.please do both the sets
2. Calculate multiplier k. Find distribution function f(x), mode Mo(x), median Me(x), mathematical expectation (the mean) M(x), variance (dispersion) D(x) and standard deviation 0(x) for continuous distributions with the...
How do I solve using Matlab? Below is a matrix of random numbers. Find the mean,...
How do I solve using Matlab?
Below is a matrix of random numbers. Find the mean, median, and mode of the matrix. B=[0 1 2 3 4 50 689 23092 68 40 7] Sort Matrix Z so that the largest numbers of each row are in the first column and smallest numbers descend towards the last column. Must use sort function.
6. Given the probability distribution below, find Mean and Standard deviation. X P(x) 0 0.10 10...
6. Given the probability distribution below, find Mean and Standard deviation. X P(x) 0 0.10 10 0.50 20 0.05 30 0.35 Total 1.00 I 7. To inspect manufacturing processes, companies typically examine samples of parts for deficiencies. One company that manufactures ballpoint pens selected samples of 1000 pens on each of 9 days. The company recorded, for each sample of 1000, the number of defective pens in the sample. Here are their data: 19, 16, 28, 35, 35, 30, 16,...
I'm not sure how to do a stats problem. I really need help on it it's problem 3.94 3.92. Find (a) the mode, (b) the...
I'm not sure how to do a stats problem. I really need
help on it
it's problem 3.94
3.92. Find (a) the mode, (b) the median of a random variable X having density function f(x) = lo frowse xzo otherwise and (c) compare with the mean. 3.93. Work Problem 3.100 if the density function is 4x(1 - x) 0sxsl lo otherwise 3.94. Find (a) the median, (b) the mode for a random variable X defined by - 2 prob. 1/3...
i also dont get how to do the rest of the problem. thank you for the...
i also dont get how to do the rest of the problem. thank you
for the help
5.4.T1 Question Help For the following situation, find the mean and standard deviation of the population. List all samples (with replacement) of the given size from that population and find the mean of each. Find the mean and standard deviation of the sampling distribution and compare them with the mean and standard deviation of the population. The word counts of five essays are...
4. (10pts)For each of the data set below, find the mean (i) and standard (1) (4pts) 10 (2) (4pts) 20 18 16 12 14 (3) (2pts) From the results of (1) and (2), what do you think the standard deviation is for the numbers (101, 103, 105, 107, 109)? (In generol, ony S consecutive even numbers or s numbers should have exactly the same stondard deviation, since their spread are of 2 (6pts) Mean is a measure of the center...
i need both questions answer
there are 2 sets of questions named as 2
1st set i wrote as 1st question and
2nd set i wrote as 2nd question and in each question sets
there are 2 question and each question contains 2 sub-questions iam
attaching down.please do both the sets
2. Calculate multiplier k. Find distribution function f(x), mode Mo(x), median Me(x), mathematical expectation (the mean) M(x), variance (dispersion) D(x) and standard deviation 0(x) for continuous distributions with the...
How do I solve using Matlab?
Below is a matrix of random numbers. Find the mean, median, and mode of the matrix. B=[0 1 2 3 4 50 689 23092 68 40 7] Sort Matrix Z so that the largest numbers of each row are in the first column and smallest numbers descend towards the last column. Must use sort function.
6. Given the probability distribution below, find Mean and Standard deviation. X P(x) 0 0.10 10 0.50 20 0.05 30 0.35 Total 1.00 I 7. To inspect manufacturing processes, companies typically examine samples of parts for deficiencies. One company that manufactures ballpoint pens selected samples of 1000 pens on each of 9 days. The company recorded, for each sample of 1000, the number of defective pens in the sample. Here are their data: 19, 16, 28, 35, 35, 30, 16,...
I'm not sure how to do a stats problem. I really need
help on it
it's problem 3.94
3.92. Find (a) the mode, (b) the median of a random variable X having density function f(x) = lo frowse xzo otherwise and (c) compare with the mean. 3.93. Work Problem 3.100 if the density function is 4x(1 - x) 0sxsl lo otherwise 3.94. Find (a) the median, (b) the mode for a random variable X defined by - 2 prob. 1/3...
i also dont get how to do the rest of the problem. thank you
for the help
5.4.T1 Question Help For the following situation, find the mean and standard deviation of the population. List all samples (with replacement) of the given size from that population and find the mean of each. Find the mean and standard deviation of the sampling distribution and compare them with the mean and standard deviation of the population. The word counts of five essays are...
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