Compute the standard deviation for a sample with the following information and then choose the correct answer rounded to 2 decimals.
n=14
SS=248
A) 4.37
B) 3.61
C) 4.05
D) 3.97
Compute the standard deviation for a sample with the following information and then choose the correct...
1. A student was asked to compute the mean and standard deviation for the following sample of n= 5 scores: 81, 87, 89, 86, and 87. To simplify the arithmetic, the student first subtracted 80 points from each score to obtain a new sample consisting of 1,7,9,6, and 7. The mean and standard deviation for the new sample are then calculated to be M=6 and s = 3. What are the values of the mean and standard deviation for the...
A sample of 30 items provides a sample standard deviation of 14 a. Compute the 90% confidence interval estimate of the population variance (to 2 decimals). b. Compute the 95% confidence interval estimate of the population variance (to 2 decimals). C. Compute the 95% confidence interval estimate of the population standard deviation (to 1 decimal).
Compute the range and the standard deviation for the following sample of n = 5. Note that there are three scores clustered around the mean in the center of the distribution, and two extreme values. a) 0,6,7,8,14 Range (continuous)=____ Range (discrete)= ____ (what is the difference between finding the discrete and finding the continuous?) EX =____ M=____ SS=____ s2=____ s=_____ b) According to the range, how do the two distributions compare in variability? Why? c) How do they compare according...
Find the sample variance and standard deviation. 20, 14, 3, 8, 10 Choose the correct answer below. Fill in the answer box to complete your choice. (Type an integer or a decimal. Round to one decimal place as needed.) OA. S2= OB. 02 =
Compute the mean and standard deviation for the following sample of n = 4 scores: 82, 88, 82, 86 (Hint: To simplify the arithmetic, you can subtract 80 points from each score to obtain a new sample consisting of 2, 8, 2, and 6.) Compute the mean and standard deviation for the new sample. Mean: Standard deviation: What are the values of the mean and standard deviation for the original sample? Mean: Standard deviation:
A sample mean, sample size, population standard deviation, and confidence level are provided. Use this information to complete parts (a) through (c) x = 33, n = 25, C = 6, confidence level = 90% Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table a. Use the one-mean z-interval procedure to find a confidence interval for the mean of the population from which the sample...
A sample of 20 items provides a sample standard deviation of 11. a. Compute the 90% confidence interval estimate of the population variance (to 2 decimals). Use Table 11.1. b. Compute the 95% confidence interval estimate of the population variance (to 2 decimals). Use Table 11.1.c. Compute the 95%confidence interval estimate of the population standard deviation (to 1 decimal). Use Table 11.1.
Find the sample variance and standard deviation. 19, 16, 3, 6, 10 Choose the correct answer below. Fill in the answer box to complete your choice. (Type an integer or a decimal. Round to one decimal place as needed.) A. σ2=_______ B. s2=______
oose the correct interpretation of the standard deviation below. A. The standard deviation represents the sum of the deviations from the mean. B. The standard deviation represents finding the deviation for each observation, squaring each deviation, and then adding them up. C. Since the standard deviation uses the square of the units of measurement for the original data, it is not easy to interpret. D. The standard deviation represents a typical distance of an observation from the mean. Suppose the...
Compute the Sample Variance and Sample Standard Deviation Question Given a sample variance of 6, what is the approximate sample standard deviation? Select the correct answer below: O 2.4 03 O 6.5 O 36