Question

In: Math

Calculate the mean, ?⎯⎯⎯,x¯, and standard deviation, ?,s, for the data set. Sample Value 1 8.013...

Calculate the mean, ?⎯⎯⎯,x¯, and standard deviation, ?,s, for the data set.

Sample Value
1 8.013
2 8.013
3 8.012
4 8.029
5 8.013
6 8.025

Solutions

Expert Solution

Solution:

Given that,

x x2
8.013 64.2082
8.013 64.2082
8.012 64.1921
8.029 64.4648
8.013 64.2082
8.025 64.4006
x =48.105 x2 =385.6821

The sample mean is

Mean   = (x / n)

= (8.013 +8.013 +8.012+8.029+8.013+8.025 / 6 )

= 48.105 /6

= 8.0175

Mean   = 8.0175

The sample standard deviation is S

S = ( x2 ) - (( fx)2 / n ) / 1 -n )

   = ( 385.6821 ( (48.105 )2 / 6 ) / 5

   = ( 385.6821 - 385.6818 / 5 )

= (0.0003 / 5 )

= 0.0001

=0.0075

The sample standard deviation is = 0.0075


Related Solutions

This data is from a sample. Calculate the mean, standard deviation, and variance. x 38.3 35.2...
This data is from a sample. Calculate the mean, standard deviation, and variance. x 38.3 35.2 26.7 49.9 44.6 14.2 16.4 34 14.4 Please show the following answers to 2 decimal places. Sample Mean = Sample Standard Deviation = Sample Variance = Ooops - now you discover that the data was actually from a population! So now you must give the population standard deviation. Population Standard Deviation =
A data set yielded the following information: The sample mean is 45. The sample standard deviation...
A data set yielded the following information: The sample mean is 45. The sample standard deviation is 17.1. (a) According to the z-score criterion, how small does a value in this data set have to be in order to be called an outlier from below? (b) According to the z-score criterion, how large does a value have to be in order to be called an outlier from above?
Given the data set below, calculate the range, mean, variance, and standard deviation
Given the data set below, calculate the range, mean, variance, and standard deviation. 19,  33,  8,  29,  18,  5, 10, 14,  25 Range = Mean = Variance = Standard deviation =
Calculate the mean and standard deviation and interpret your findings for the following set of data...
Calculate the mean and standard deviation and interpret your findings for the following set of data showing the diastolic blood pressure measurements for a sample of 9 individuals: 61, 63, 64, 69, 71, 77, 80, 81, and 95. On average, the average distance of an individual data point is approximately 10.93 diastolic pressure points from the mean diastolic pressure of 73.44. On average, the average distance of an individual data point is approximately 119.53 diastolic pressure points from the mean...
Which mean, standard deviation, and x-value set corresponds to a z-score of -2? a.) x-value =...
Which mean, standard deviation, and x-value set corresponds to a z-score of -2? a.) x-value = 35 mean = 21 standard deviation = 7 b.) x-value = 80 mean = 90 standard deviation = 10 c.) x-value = 50 mean = 60 standard deviation = 5 d.) x-value = 89 mean = 80 standard deviation = 9
the mean of the data set: 37634.3 the standard deviation of the data set: 10967.85287 the...
the mean of the data set: 37634.3 the standard deviation of the data set: 10967.85287 the sample size of the data set: 50 Using the numbers above calculate the following Show your step-by-step work for each question: Determine the 90% confidence interval, assuming that sigma is unknown, list each in proper (lower bound, upper bound) notation. Make a confidence statement. Determine the 95% confidence interval, assuming that sigma is unknown, list each in proper (lower bound, upper bound) notation. Make...
Suppose you calculated the mean, median, mode, and sample standard deviation of a data set. The...
Suppose you calculated the mean, median, mode, and sample standard deviation of a data set. The results are shown below. Mean: 44 Median: 31 Mode: 46 Sample Standard Deviation: 2 If each number in the data set was decreased by 4 units, what would be the new values of these statistics? Fill in your results below. New Mean: New Median: New Mode: New Sample Standard Deviation:
Calculate the mean, median, mode, variance, and standard deviation for the following data set. (5 answers,...
Calculate the mean, median, mode, variance, and standard deviation for the following data set. (5 answers, 0.4 pts each) Number of cigarettes smoked per day was recorded for 10 study subjects. Study Subject # of cigarettes smoked/day A 5 B 7 C 3 D 10 E 6 F 10 G 20 H 0 I 5 J 12
Given the data set below, calculate the standard deviation standard deviation using the defining formula standard...
Given the data set below, calculate the standard deviation standard deviation using the defining formula standard deviation using the computing formula 8,41,24,19,15,12,47,12,33
3. Take the mean and standard deviation of data set A calculated in problem 1 and...
3. Take the mean and standard deviation of data set A calculated in problem 1 and assume that they are population parameters (μ and σ) known for the variable fish length in a population of rainbow trouts in the Coldwater River. Imagine that data set B is a sample obtained from a different population in Red River (Chapter 6 problem!). a) Conduct a hypothesis test to see if the mean fish length in the Red River population is different from...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT