sampling error is difference between
The sampling error is the difference between the sample statistic used to estimate and the population parameter
Ans: population parameter and a sample statistics
#option c is correct
1. Sampling error is the difference between: a. a raw score and the mean. b. the...
1. A(n) _____________ is the distance between a score and the mean of the group of scores. Variation ratio Standard deviation Dispersion Interquartile range Mean deviation score 2. The ___________ is a probability threshold or cutoff value used in hypothesis testing that signifies the level of risk we are willing to take in making a Type I error (i.e., false positive, or rejecting a true null hypothesis). binomial distribution conditional probability null hypothesis sampling distribution alpha level 3. Researchers commonly...
Which of the following calculations is NOT derived from the confidence interval?Choose the correct answer below. A.Difference between the limits, 2E=(upper confidence limit)−(lower confidence limit)B.The population mean, μ=(upper confidence limit)+(lower confidence limit)C.The margin of error, E=(upper confidence limit)−(lower confidence limit)2D.The point estimate of µ, x=(upper confidence limit)+(lower confidence limit)2
The inevitable difference between the mean of a random sample and the mean of a population is known as _____. (5 Points) a. confidence interval b. probability c. random sample d. sampling error
QUESTION 10 The sampling error is the a standard deviation multiplied by the sample size. b. same as the standard error of the mean. c, difference between the value of the sample mean and the value of the population mean. d.error caused by selecting a bad sample.
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)...
1) Which type of error is more likely to be made if it is difficult to perform sampling and there is high population variance? Select one: a. Type I error b. Type II error c. Type III error d. a and b, but not c e. a, b and c 2) Pearson's r is suitable to measure the linear relationship between two __________ level variables. Select one: a. interval/ratio b. ratio but not interval c. interval but not ratio d....
The batteries produced in a manufacturing plant have a mean time to failure of 30 months, with a standard deviation of 2 months. I select a simple random sample of 400 batteries produced in the manufacturing plant. I test each and record how long it takes for each battery to fail. I then compute that the average failure time of the 400 batteries is 29.9 months with a standard deviation of 2.15 months. In this scenario, the value 29.9 is:...
INFERENCES ABOUT THE POPULATION MEAN DISTINGUISH BETWEEN Z-TEST AND T-TEST. 1. A GROUP OF 9 STORE MANAGERS WAS DRAWN FOR ANALYSIS OF THEIR IQ SCORES. ASSUME THAT INDIVIDUAL SCORES ARE NORMALLY DISTRIBUTED, WITH THE UNKNOWN POPULATION AVERAGE AND POPULATION STANDARD DEVIATION OF 15. SAMPLE SUMMARIES WERE: (SAMPLE MEAN) = 88.2 AND (SAMPLE STANDARD DEVIATION) = 12. (A) AT THE 1% SIGNIFICANCE LEVEL, DO WE HAVE SUFFICIENT EVIDENCE THAT THE POPULATION AVERAGE IQ WAS BELOW 100? CIRCLE ONE: YES! || NO!...
In hypothesis testing for a population mean, the term "significant difference" implies a: A) difference between the sample mean and the hypothesized population mean that leads to the rejection of the null hypothesis. B) difference between the test statistic and the critical region. C) difference between the one-sided test and the two-sided test. D) difference between the sample standard deviation and the population standard deviation.
Please explain how you got your answer. 1. The standard error of x-bar1 - x-bar2 is the measure of ____ for the sampling distribution of x-bar1 -- x-bar2. a) point estimator b) interval estimate c) standard deviation 2. The point estimator for the difference between two population means, u1 - u2, is___ a) o1 - o2 b) s1 - s2 c) there is no point estimator for the difference between two population means 3. Suppose students with an ACT Math...