True or False; Explain answer. If the standard deviation of a data set is 4, then...
True or False; Explain answer. If the standard deviation of a data set is 4, then the variance of the data set is 16?
Homework Answers
Answer
We know that the relationship between standard deviation and variance is given as
variance = 
here we have standard deviation = 
setting the value, we get
variance =
= 
So, it is correct statement that when the standard deviation is 4, then the variance is 16.
Answer is TRUE
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True or False; Explain answer. If the standard deviation of a
data set is 4, then...
Module 02 Homework Assignment The data set below shows the ages of 10 randomly selected drivers...
Module 02 Homework Assignment The data set below shows the ages of 10 randomly selected drivers who recently filed car insurance claims. Calculate the mean, median, mode and midrange for the data set below. Show your calculations and interpret your results in context of the problem. 51 50 47 50 48 41 59 47 45 37 Mean: Interpretation: Median: Interpretation: Mode: Interpretation: Midrange: Interpretation: Determine whether the statements below are true or false. If you answer false, explain why the...
What are the sample variance and sample standard deviation of the following data set: 4, 7,...
What are the sample variance and sample standard deviation of the following data set: 4, 7, 9, 10, 16? Sample standard deviation=4.4 Variance=19.7 Sample standard deviation=6 Variance= 36 Sample standard deviation=7 Variance= 49 Sample standard deviation=3 Variance= 9
For this question, you are required to find the standard deviation for a set of data. The answer ...
For this question, you are required to find the standard deviation for a set of data. The answer alone will not achieve full marks. There are many tools available to calculate the standard deviation. Here you are required to use several of the tools and show your working out to earn the marks. The data is the test results of 21 students who sat a mathematics quiz worth 100 marks. Results: 60, 47, 17, 43, 30, 90, 77, 61, 54,...
#4 (4a) You have a data set with a mean of 50 and a standard deviation...
#4 (4a) You have a data set with a mean of 50 and a standard deviation of 10. If you add 3 to every data point, what will be the new values for the mean and standard deviation. Briefly explain your answer. (4b) The standardized score for the minimum of a data set is Zmin median is zmed = -0.6, and the standardized score the maximum of the data set is zmin +6.8. Based on this information alone, describe the...
True or false: The standard deviation is resistant to outliers. O False True True or false:...
True or false: The standard deviation is resistant to outliers. O False True True or false: When summarizing the distribution of a dataset with a strong outlier, the five-number summary is a better choice than the mean and standard deviation. O False True
1. True or False? 2. True or False? To compute a t statistic, you must use the sample variance (or standard deviation) to compute the estimated standard error for the sample mean. True False The 95%...
1.
True or False?
2.
True or False?
To compute a t statistic, you must use the sample variance (or standard deviation) to compute the estimated standard error for the sample mean. True False The 95% confidence interval for the difference between two treatment means extends from-2.50 to +5.50. Based on this information, you can conclude that there is no significant difference between the treatments at the .05 level of significance True O False
To compute a t statistic, you...
Calculate the sample standard deviation for this data set: 58,60, 74
Calculate the sample standard deviation for this data set: 58,60, 74. The formula for the sample standard deviation is shown, where n represents the sample size, x represents each value in the data set, and x represents the sample mean.\(s=\sqrt{\frac{\sum(x-\bar{x})^{2}}{n-1}}\)Step 1. Calculate the sample mean. Step 2. Calculate the deviations and the squares of the deviations. Step 3. Calculate the sample variance and the sample standard deviation. Provide your sample standard deviation answer precise to oñe decimal place
Compute Variance and Standard Deviation Question Using the following set of data the same as in...
Compute Variance and Standard Deviation Question Using the following set of data the same as in the previous problem), find the sample standard deviation: 8, 6, 3, 11,7 The sample variance of this data set is 8.5. Round the final answer to one decimal place. Provide your answer below: sample std FEEDBACK MORE INSTRUCTION SUBMIT Content attribution 20 00D ood FI F2 F3 FS F7 F8 PVO
Calculate the range, population variance and population standard deviation for the following data set. If necessary,...
Calculate the range, population variance and population standard deviation for the following data set. If necessary, round to one more decimal place than the largest number of decimal places given in the data. 7,8,9, 10, 11, 12, 13, 14, 15, 16 Copy Data AnswerHow to Enter) 2 Points E Tables Keypad Keyboard Shortcuts < Prev Range: Nex Population Variance Population Standard Deviation:
Calculate the sample standard deviation for this data set: 58, 60, 74. The formula for the...
Calculate the sample standard deviation for this data set: 58, 60, 74. The formula for the sample standard deviation is shown, where n represents the sample size, x represents each value in the data set, and X represents the sample mean. 2(x-x) n- Step 1. Calculate the sample mean. x=164 Step 2. Calculate the deviations and the squares of the deviations deviation of 58 - square of deviation of 58- deviation of 60 square of deviation of 60- deviation of...
What are the sample variance and sample standard deviation of the following data set: 4, 7, 9, 10, 16? Sample standard deviation=4.4 Variance=19.7 Sample standard deviation=6 Variance= 36 Sample standard deviation=7 Variance= 49 Sample standard deviation=3 Variance= 9
#4 (4a) You have a data set with a mean of 50 and a standard deviation of 10. If you add 3 to every data point, what will be the new values for the mean and standard deviation. Briefly explain your answer. (4b) The standardized score for the minimum of a data set is Zmin median is zmed = -0.6, and the standardized score the maximum of the data set is zmin +6.8. Based on this information alone, describe the...
True or false: The standard deviation is resistant to outliers. O False True True or false: When summarizing the distribution of a dataset with a strong outlier, the five-number summary is a better choice than the mean and standard deviation. O False True
1.
True or False?
2.
True or False?
To compute a t statistic, you must use the sample variance (or standard deviation) to compute the estimated standard error for the sample mean. True False The 95% confidence interval for the difference between two treatment means extends from-2.50 to +5.50. Based on this information, you can conclude that there is no significant difference between the treatments at the .05 level of significance True O False
To compute a t statistic, you...
Compute Variance and Standard Deviation Question Using the following set of data the same as in the previous problem), find the sample standard deviation: 8, 6, 3, 11,7 The sample variance of this data set is 8.5. Round the final answer to one decimal place. Provide your answer below: sample std FEEDBACK MORE INSTRUCTION SUBMIT Content attribution 20 00D ood FI F2 F3 FS F7 F8 PVO
Calculate the range, population variance and population standard deviation for the following data set. If necessary, round to one more decimal place than the largest number of decimal places given in the data. 7,8,9, 10, 11, 12, 13, 14, 15, 16 Copy Data AnswerHow to Enter) 2 Points E Tables Keypad Keyboard Shortcuts < Prev Range: Nex Population Variance Population Standard Deviation:
Calculate the sample standard deviation for this data set: 58, 60, 74. The formula for the sample standard deviation is shown, where n represents the sample size, x represents each value in the data set, and X represents the sample mean. 2(x-x) n- Step 1. Calculate the sample mean. x=164 Step 2. Calculate the deviations and the squares of the deviations deviation of 58 - square of deviation of 58- deviation of 60 square of deviation of 60- deviation of...
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