Sample A has a larger standard error of the mean than Sample B. Which sample mean...
Sample A has a larger standard error of the mean than Sample B. Which sample mean would you trust to be a better estimate of the population mean?
a. both samples would provide equally good estimates of the population mean
b. unable to determine with the provided information
c. Sample A
d. Sample B
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Sample A has a larger standard error of the mean than Sample B.
Which sample mean...
Population A has a larger standard deviation than Population B. If samples of equal size are...
Population A has a larger standard deviation than Population B. If samples of equal size are taken from both populations, which sample will have a smaller standard error of the mean? a. Unable to determine with provided information b. the sample from Population B c. the sample from Population A d. The samples will have the same standard error of the mean
Suppose that you are wanting to estimate the mean of a population in which the standard...
Suppose that you are wanting to estimate the mean of a
population in which the standard deviation,
, is known to be 5. You take a random sample of size n=50 from the
population and determine that the mean of the sample is 22.4.
a. What is the standard error (of the mean) to two decimal
places?
b. If you wanted 94% confidence in your results, then what would
be the maximum allowable error (error of the estimate), E, to...
regarding the distribution of sample means which of the following statements is false the standard error of distributi...
regarding the distribution of sample means which of the following statements is false the standard error of distribution of sample means is a measure of the average distance of each sample mean from the larger population the distribution of sample means shows how smaller sample means are distributed around a lsrger sample mean the distribution of sample means shows how different samples from a population will vary to some extent thevstandard error of the distribution of sample means will increase...
When estimating a population mean by a sample mean, the margin of error does NOT depend...
When estimating a population mean by a sample mean, the margin of error does NOT depend on ______. A) The confidence level B) The sample mean C) The sample size D) The population standard deviation What is the sampling distribution of a statistic? A) The distribution of observations of the statistic for all possible sizes of samples from a population B) The distribution of all possible observations of the statistic for samples of a given size from a population C)...
Suppose two samples are taken. Sample 1 has a mean of 105 and a standard deviation...
Suppose two samples are taken. Sample 1 has a mean of 105 and a standard deviation of 15 and sample two has a mean of 100 and a standard deviation of 22. Assume the samples are taken on the same scale/variable. Which of the following is a correct statement about these samples? a. Sample 2 has more variability than sample 1. b. Both samples are more or less the same. c. Sample 1 has more variability than sample 2. T...
1. We reject the null hypothesis only when: a. our sample mean is larger than the population mean. b. the p value asso...
1. We reject the null hypothesis only when: a. our sample mean is larger than the population mean. b. the p value associated with our test statistic is greater than the significance level of the test we have chosen. c. our sample mean is smaller than the population mean. d. the p value associated with our test statistic is smaller than the significance level of the test we have chosen. 2. In a study of simulated juror decision making, researchers...
If an observed F-value is larger than 1, this must mean that? a. The SS Error...
If an observed F-value is larger than 1, this must mean that? a. The SS Error is larger than the SS Total b. The SS Effect is larger than the SS Total c. The MS Effect is larger than the MS Error d. The MS Effect is smaller than the MS Error
1. Given a normal population which has a mean of 140 and a standard deviation of...
1. Given a normal population which has a mean of 140 and a standard deviation of 21, find the probability that a random sample of 100 has a mean between 138 and 145. 2. If all possible samples of size n are drawn from an infinite population with standard deviation 8, then the standard error of the sample mean equals 1.0 if the sample size is 64. a. true b. false 3. You have completed an hypothesis test and determine...
1. A simple random sample of 35 has a mean of 44.3 miles and a standard...
1. A simple random sample of 35 has a mean of 44.3 miles and a standard deviation of 2.0 miles. Which of the following is a 99% confidence interval estimate for the population mean? a. (43.637,44.963) b. (43.429 , 45.171) c. (43.378 , 45.222) d. (43.613 , 44.987) We will take 200 simple random samples, each of size 50, from the given population and calculate the 90% confidence interval for μ for each. Approximately how many 200 intervals will contain...
For the independent measures ttast, which of the following describes the estimated standard error of the...
For the independent measures ttast, which of the following describes the estimated standard error of the difference in sample means (whose symbolis )? The difference between the standard deviations of the two samples A weighted average of the two sample variances (weighted by the sample stres) An estimate of the standard distance between the difference in sample means (M. - Me) and the difference in the corresponding population means (Hi-Pa) The variance across all the data values when both samples...
Suppose that you are wanting to estimate the mean of a
population in which the standard deviation,
, is known to be 5. You take a random sample of size n=50 from the
population and determine that the mean of the sample is 22.4.
a. What is the standard error (of the mean) to two decimal
places?
b. If you wanted 94% confidence in your results, then what would
be the maximum allowable error (error of the estimate), E, to...
For the independent measures ttast, which of the following describes the estimated standard error of the difference in sample means (whose symbolis )? The difference between the standard deviations of the two samples A weighted average of the two sample variances (weighted by the sample stres) An estimate of the standard distance between the difference in sample means (M. - Me) and the difference in the corresponding population means (Hi-Pa) The variance across all the data values when both samples...
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