Homework Answers
Option 3 is correct
exp 1 has highest SD meand these values are maximum deviated from mean and experiment 2 and values have equally and least deviation.
Standard deviation basically measures the deviation of data from the mean value and used to calculate the confidence interval.
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The standard deviations for 4 experiments are listed below. Experiment number Standard deviation 15 Which best...
Find the range, variance, and standard deviation for the given sample data, if possible. If the...
Find the range, variance, and standard deviation for the given sample data, if possible. If the measures of variation can be obtained for these values, do the results make sense? Biologists conducted experiments to determine whether a deficiency of carbon dioxide in the soil affects the phenotypes of peas. Listed below are the phenotype codes where 1 smooth-yellow, 2 smooth-green, 3- wrinkled yellow, and 4- wrinkled-green 1 2 3 2 4 1 3 3 2 2 2 1 2 2...
Find the range, variance, and standard deviation for the given sample data, if possible
Find the range, variance, and standard deviation for the given sample data, if possible. If the measures of variation can be obtained for these values, do the results make sense? Biologists conducted experiments to determine whether a deficiency of carbon dioxide in the soil affects the phenotypes of poas. Listed below are the phenotype codes, where 1-smooth-yellow, 2 smooth-green, 3-wrinkled yellow, and 4 wrinkled-green. 1 1 4 2 4132 2 2 2 2 2 2 2 3 2 2 2 2 Can the...
1. Below are the historical arithmetic average returns and standard deviations for different asset classes. Asset...
1. Below are the historical arithmetic average returns and standard deviations for different asset classes. Asset class Mean return Standard deviation T-bills 0.035 0.031 Corporate bonds 0.063 0.084 Small company stocks 0.169 0.323 Large company stocks 0.121 0.202 Assume that the returns are normally distributed. Use a standard normal table to answer the following questions. a. What is the probability that the return on corporate bonds will be less than 7%? b. What is the probability that the return on...
10) Compute the mean, variance, and standard deviation for the probability distribution listed below. 2 4...
10) Compute the mean, variance, and standard deviation for the probability distribution listed below. 2 4 P(x) 1/3 1/81/81/4 1/6
1) The area that is less than 4 (<4) and the area that is greater than...
1) The area that is less than 4 (<4) and the area that is greater than or equal to 4 (≥4) would be considered ______. Group of answer choices complements a continuous distribution binomial outcomes z scores 2) As the z-score decreases, the cumulative area under the curve to the left of that value will _______. Group of answer choices increase go to 1 decrease remain the same 3) As the z-score increases, the cumulative area under the curve to...
A sample size of 120 had a sample mean and standard deviation of 100 and 15 respectively. Of thes...
A sample size of 120 had a sample mean and standard deviation of 100 and 15 respectively. Of these 120 data values, 3 were less than 70, 18 were between 70 and 85, 30 between 85 and 100, 35 between 100 and 115, 32 were between 115 and 130 and 2 were greater than 130. Test the hypothesis that the sample distribution was normal.
13. Below are the range and standard deviation for a set of data. Use the range...
13. Below are the range and standard deviation for a set of
data. Use the range rule of thumb and compare it to the standard
deviation listed below. Does the range rule of thumb produce an
acceptable approximation? Suppose a researcher deems the
approximation as acceptable if it has an error less than 15%.
The estimated standard deviation is
Is this an acceptableapproximation?
A:.No, because the error of the range rule of thumb's
approximation is
greater than 15%.
B.Yes, because...
Question 17 Given the following data: Normal distribution Mean 3 Standard deviation -1 Determine number of...
Question 17 Given the following data: Normal distribution Mean 3 Standard deviation -1 Determine number of samples out of 100 samples taken that fall within plus - minus 2 standard deviations
For the independent measures ttast, which of the following describes the estimated standard error of the...
For the independent measures ttast, which of the following describes the estimated standard error of the difference in sample means (whose symbolis )? The difference between the standard deviations of the two samples A weighted average of the two sample variances (weighted by the sample stres) An estimate of the standard distance between the difference in sample means (M. - Me) and the difference in the corresponding population means (Hi-Pa) The variance across all the data values when both samples...
Find the range, variance, and standard deviation for the given sample data, if possible. If the measures of variation can be obtained for these values, do the results make sense? Biologists conducted experiments to determine whether a deficiency of carbon dioxide in the soil affects the phenotypes of peas. Listed below are the phenotype codes where 1 smooth-yellow, 2 smooth-green, 3- wrinkled yellow, and 4- wrinkled-green 1 2 3 2 4 1 3 3 2 2 2 1 2 2...
10) Compute the mean, variance, and standard deviation for the probability distribution listed below. 2 4 P(x) 1/3 1/81/81/4 1/6
13. Below are the range and standard deviation for a set of
data. Use the range rule of thumb and compare it to the standard
deviation listed below. Does the range rule of thumb produce an
acceptable approximation? Suppose a researcher deems the
approximation as acceptable if it has an error less than 15%.
The estimated standard deviation is
Is this an acceptableapproximation?
A:.No, because the error of the range rule of thumb's
approximation is
greater than 15%.
B.Yes, because...
Question 17 Given the following data: Normal distribution Mean 3 Standard deviation -1 Determine number of samples out of 100 samples taken that fall within plus - minus 2 standard deviations
For the independent measures ttast, which of the following describes the estimated standard error of the difference in sample means (whose symbolis )? The difference between the standard deviations of the two samples A weighted average of the two sample variances (weighted by the sample stres) An estimate of the standard distance between the difference in sample means (M. - Me) and the difference in the corresponding population means (Hi-Pa) The variance across all the data values when both samples...
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