QUESTION 15
The estimated standard error of the mean is calculated by dividing _____ by _____.
a. |
s; the square root of n |
|
b. |
s; n2 |
|
c. |
n2; s |
|
d. |
the square root of n; s |
The estimated standard error of the mean is calculated by dividing s by the square root of n.
The standard error of the mean equal to
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QUESTION 15 The estimated standard error of the mean is calculated by dividing _____ by _____....
4. Calculating the standard deviation and the estimated standard error for the sample mean difference Aa Aa A researcher is interested in hamster wheel-running activity during the summer versus the winter. He suspects that either the hamsters will run less during the winter to conserve energy or they will run more to keep warm. He records the activity of n = 16 hamsters during June, July, and August and compares their running-wheel revolutions per hour to the activity of the...
The standard error of the mean is: Select one: a. An indication of how much error exists in the estimated population mean. b. An indication of how much error exists in the estimated sample mean. c. An indication of how much error exists in the standard deviation of the population. d. An indication of how much error exists in the standard deviation of the sample.
Consider two x distributions corresponding to the same x distribution. The first x distribution is based on samples of size n = 100 and the second is based on samples of size n = 225. Which x distribution has the smaller standard error? a. The distribution with n = 225 will have a smaller standard error. b. The distribution with n = 100 will have a smaller standard error. Explain your answer. Since σx = σ/√n, dividing by the square...
A chi-square is calculated by dividing the total number of _______ by the number of _______. a. occurrences; categories b. occurrences; observations c. categories; occurrences d. observations; occurrences
To develop a confidence interval for the population mean difference, you need to calculate the estimated standard error of the difference of sample means. The estimated standard error is?
Given a sample mean=13.24; sample standard deviation=3.40; estimated standard error of the mean=0.567; margin of error for 95% confidence interval for estimating the population mean=1.151. What is the upper bound of the 95% confidence interval? (Enter the value with 3 decimal places in the form ##.###)
To calculate a confidence interval, the margin of error (E) must first be calculated. The Margin of Error, E, for means is: E = 1.96*s/sqrt(n), where s is the sample standard deviation, n is the sample size. The “sqrt” stands for square root. The Margin of Error, E, for proportions is: E = 1.96*sqrt[p*(1-p)/n], where s is the sample standard deviation, n is the sample size, and p is the proportion. Use the Confidence Interval formula above, and the correct...
The __________ is the standard deviation of the estimated value of the mean of the actual distribution around its true value; that is, it is the standard deviation of the average return. a. Standard return b. Standard error c. Estimate error d. Standard Predict error
WHICH OF THE FOLLOWING SAMPLES WILL HAVE THE SMALLEST VALUE FOR THE ESTIMATED STANDARD ERROR? a. n=25 with s^2 = 100 b. n=25 with s^2 = 400 c. n=100 with s^2 = 100 d. n=100 with s^2 = 400
Find the estimated standard error for the sample mean for each of the following samples. (Use one decimal place.) n = 9 with SS = 1152: SM 4.0 n = 16 with SS = 540: SM = n 25 with SS 600: