The mean for a sample of n = 4 scores has a standard error ...
1. The mean for a sample of n = 4 scores has a standard error of 5 points. This sample was selected from a population with a standard deviation of s = 20. (Points: 1) True False
False
2. A sample is obtained from a population with s = 12. If the sample mean has a standard error of 3, then the sample size is n = 4. (Points: 1) True False
False
3. A sample mean with a z-score value between –1.00 and +1.00 would be considered a fairly typical, representative sample. (Points: 1) True False
True
4. The mean for a sample of n = 16 scores has an expected value of 50. This sample was selected from a population with a mean of m = 50. (Points: 1) True False
True
5. A researcher obtained M = 27 for a sample of n = 36 scores selected from a population with m = 30 and s = 18. This sample mean corresponds to a z-score of z = –1.00. (Points: 1) True False
True
6. Samples of size n = 4 are selected from a population with m = 80 with s = 8. What is the standard error for the distribution of sample means? (Points: 1) 80 8 4 2
4
7. If random samples, each with n = 9 scores, are selected from a normal population with m = 80 and s = 18, and the mean is calculated for each sample, then the average of all the sample means would be _____. (Points: 1) 2 6 80 cannot be determined without additional information
80
8. As sample size increases, the standard error of M _____. (Points: 1) also increases decreases stays constant
decreases
9. For a normal population with m = 80 and s = 20 which of the following samples is least likely to be obtained? (Points: 1) M greater than 90 for a sample of n = 4 M greater than 85 for a sample of n = 4 M greater than 88 for a sample of n = 25 M greater than 84 for a sample of n = 25
M greater than 88 for a sample of n = 25
10. A normal population has m = 50 and s = 8. A random sample of n = 4 scores from this population has a mean of 54. What is the z-score for this sample mean? (Points: 1) +0.50 +1.00 +2.00 +4.00
+1.00
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related searches
- synonym for a lot of something
- traveling the world for a year
- a sample of good report
- a sample of speech writing
- calculate the mean of a data set
- the mean of a data set
- find the mean of a frequency distribution
- find the mean of a sampling distribution
- find the mean in a normal distribution
- a sample of business plan
- a sample of an argumentative essay
- what is the shortcut for a screenshot