Sample-level summaries are called __________, computed by __________ statistics methods; while population values are called __________, estimated by __________ statistics methods.
A. |
parameters; statistics; descriptive; inferential |
|
B. |
descriptive; statistics; inferential; parameters |
|
C. |
inferential; statistics; descriptive; parameters |
|
D. |
statistics; inferential; parameters; descriptive |
|
E. |
statistics; descriptive; parameters; inferential |
Sample-level summaries are called __________, computed by __________ statistics methods; while population values are called __________,...
a. Distinguish between description and inference as reasons for using statistics. b. Suppose you have data for a population, such as obtained in a census. Explain why descriptive statistics are helpful, but inferential statistics are not needed. a. Which statement below best distinguishes description from inference? A. Statistical inference provides useful summaries of the data, while description helps make predictions and decide whether observed patterns are meaningful. B. Statistical inference provides useful summaries of data for a sample, while description...
3. The type of statistics that describes the characteristics of a group or population is called _____. a. Inferential statistics b. Descriptive statistics c. Generalized statistics d. Mathematical statistics 6. Which of the following is not used in figuring occupancy rates? a. Inpatient service days b. Bed count days c. Discharges d. Days in a period 9. The adjusted hospital autopsy rate includes _____. a. Patients whose bodies are available for hospital autopsy minus coroner’s cases b. Patients whose bodies...
The following sample of n = 4 scores was obtained from a population with unknown parameters. Scores: 2, 2, 6, 2 Compute the sample mean and standard deviation. Note: These are descriptive values that summarize the sample data. (Round your answers to two decimal places.) M = S = Compute the estimated standard error for M. (Note: This is an inferential value that describes how accurately the sample mean represents the unknown population mean.) SM =
In each of the following statements, determine whether the branch of statistics is best classified as descriptive statistics or inferential statistics. A. The average of a data set is equal to 35.7. B. The minimum value of a data set is 78, and the maximum value is 146. C. Since the average age in a sample is 23, it is likely that the average age in the population is about 23. D. Since the values in the sample are so...
What is a representative sample? What is its value? Choose the correct answer below A. A representative sample is a sample that is selected at random from the population of interest. It is valuable because its unbiased nature allows descriptive statistics to be applied.B. A representative sample is a sample that exhibits characteristics typical of those possessed by the population of interest. It is valuable because these characteristics allow descriptive statistics to be applied.C. A representative sample is a sample that is...
Describe the difference between descriptive and inferential statistics Identify the level of measurement of a variety of variables Describe the difference between measures of central tendency and variability Explain the difference between correlation and causation Describe measurement validity and reliability and name the statistics used to test them Explain the difference between a population and a sample Describe what correlations are and how they are used only answer if you know these. Thanks.
1) Which variables are associated with an experiment? a.) IV and DV b.) IV and Predictor c.) Predictor and Criterion d.) Explanatory and Response 2) TRUE OR FALSE: The goal of descriptive statistics is solely to summarize, and organize data. 3) TRUE OR FALSE: Inferential statistics involves inferring something about a sample from population data. 4) TRUE OR FALSE: In a study entitled the relationship between study time and grades, study time is the predictor variable. 5) TRUE OR FALSE:...
An article in a reputable journal discussed several data collection methods for testing the efficacy of a new program designed to reducedrug-related crimes in a city. The sample consisted of 56 "hot spots"long dash—areas of the city with a high crime rate but not necessarily a high drug crime rate. In Method 1, the new program will be implemented in half of the 56 hot spots (selected at random); the other half will not implement the program (the "no treatment"...
Fill in the missing words to the quote: “Statistical methods may be described as methods for drawing conclusions about based on computed from the .” (a) statistics, samples, populations (b) populations, parameters, samples (c) statistics, parameters, samples (d) parameters, statistics, populations (e) populations, statistics, samples
A) Explain the difference between descriptive and inferential statistics. B) What happens to the margin of error when the confidence level increases. C) Discuss the relationship between sample size and margin of error.