Ask question

# Determine whether the tests of proportion are used for the categorical or the numerical data. # Determine whether the tests of proportion are used for the categorical or the numerical data.

Question
Chi-square tests asked 2021-02-09
Determine whether the tests of proportion are used for the categorical or the numerical data.

## Answers (1) 2021-02-10
The categorical data is the data which describes the qualities of the objects under consideration, where as the numerical data is the measure of the data.
The test of proportion is used to test whether the population proportion is significantly equal to hypothesized value or not. It is based on the proportion of the responses of the population. For observing the response, the population is divided into two categories.
Therefore, the test of proportion is used for the categorical data.

### Relevant Questions asked 2021-02-18
Determine whether the chi-square test is applied to the categorical or the numerical data. asked 2021-02-25
Find the type and the number of variables for which the Chi-square goodness-of-fir tests are used. asked 2020-12-09
You want to know whether people in different regions of the country are equally likely to vote Sarah Duterte, Peter Cayetano, Mar Roxas, or any candidate other than the three in the next election. You would use
A. chi-square test of independence.
B. either chi-square test (goodness-of-fit or test of independence), depending on how you set up the problem.
C. chi-square goodness-of-fit test.
D. both chi-square tests, in order to check the results of one with the other. asked 2021-01-08
Chi-square tests are nonparametric tests that examine nominal categories as opposed to numerical values. Consider a situation in which you may want to transform numerical scores into categories. Provide a specific example of a situation in which categories are more informative than the actual values. asked 2021-02-10
Chi-square tests are best used for which type of dependent variable?
nominal, ordinal
ordinal interval
nominal, interval
nominal, ratio asked 2021-01-19
The numerical summary that is used for categorical data is a proportion.
Group of answer choices: True or False asked 2021-02-12
For the following situations, identify the test you would run to analyze the data:
A marketing firm producing costumes is interested in studying consumer behavior in the context of purchase decision of costumes in a specific market. This company is a major player in the costume market that is characterized by intense competition. The company would like to know in particular whether the income level of the consumers (measured as lower, middle, upper middle, and upper class) influences their choice of costume type. They are specifically focused on four types of costumes (funny costumes, scary costumes, clever costumes, and boring costumes).
a. Chi-Square Goodness of Fit
b. Frequencies
c. Descriptive Statistics
d. Chi-Square of Independence asked 2021-03-05
For each of the following situations, state whether you’d use a chi-square goodness-of-fit test, a chi-square test of homogeneity, a chi-square test of independence, or some other statistical test:
a) Is the quality of a car affected by what day it was built? A car manufacturer examines a random sample of the warranty claims filed over the past two years to test whether defects are randomly distributed across days of the work week.
b) A medical researcher wants to know if blood cholesterol level is related to heart disease. She examines a database of 10,000 patients, testing whether the cholesterol level (in milligrams) is related to whether or not a person has heart disease.
c) A student wants to find out whether political leaning (liberal, moderate, or conservative) is related to choice of major. He surveys 500 randomly chosen students and performs a test. asked 2020-11-23
Geographical Analysis (Oct. 2006) published a study of a new method for analyzing remote-sensing data from satellite pixels in order to identify urban land cover. The method uses a numerical measure of the distribution of gaps, or the sizes of holes, in the pixel, called lacunarity. Summary statistics for the lacunarity measurements in a sample of 100 grassland pixels are x¯=225 and s=20s=20. It is known that the mean lacunarity measurement for all grassland pixels is 220. The method will be effective in identifying land cover if the standard deviation of the measurements is 10% (or less) of the true mean (i.e., if the standard deviation is less than 22). a. Give the null and alternative hypotheses for a test to determine whether, in fact, the standard deviation of all grassland pixels is less than 22. b. A MINITAB analysis of the data is provided below. Locate and interpret the p-value of the test. Use α=.10α=.10. Test for One Standard Deviation Method Null hypothesisSigma = 22 Method Alternative hypothesisSigma = < 22 The standard method is only for the normal distribution. Statistics NStDevVariance 10020.0400 Tests asked 2021-01-19
Chi-Square tests are nonparametric tests. Discuss the following:
What are the differences between parametric tests and nonparametric tests?
What are the requirements for Chi-Square tests?
What are the limitations of Chi-Square tests?
...