Question

What is the null hypothesis for a chi-square test? Two variables are related in the sample...

  1. What is the null hypothesis for a chi-square test?

    Two variables are related in the sample

    Two variables are related in the population

    Two variables are unrelated in the sample
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Two variables are unrelated in the population.

Solution:

The null and alternative hypotheses for the chi-square test for independence between two categorical variables are given as below:

Null hypothesis: H0: Two categorical variables are independent. Two variables are not related in the population.

Alternative hypothesis: Ha: Two categorical variables are dependent. Two variables are related in the population.

We always test hypothesis for a population parameter and not for a sample statistic.

Two variables are unrelated in the population.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
What is evaluated by the chi-square test for goodness of fit? a. If proportions of a...
What is evaluated by the chi-square test for goodness of fit? a. If proportions of a sample distribution match those of a population specified by the null hypothesis b. If the frequencies found within an individual category match a certain shape c. Whether the means of two or more categories differ from one another d. Whether two variables are related to each other or independent
If you are comparing counts of two unrelated nominal variables with a chi-square test, what remaining...
If you are comparing counts of two unrelated nominal variables with a chi-square test, what remaining assumption you need to check before continuing? What options do you have if your assumptions are not met?
1) The larger the chi-square statistic, the weaker the evidence against the null hypothesis. True or...
1) The larger the chi-square statistic, the weaker the evidence against the null hypothesis. True or False 2) The more similar the conditional distributions in a two-way table are, the larger the P-value of the chi-square test becomes. True or False
A)What is the critical value for a chi-square test with 12 degrees of freedom at the...
A)What is the critical value for a chi-square test with 12 degrees of freedom at the 5 percent level of significance? B) If the chi-square test statistic were 18.549, what is your conclusion regarding the null hypothesis? C) What is your conclusion regarding the null hypothesis if the chi-square value were 22.10?
If the chi-square test is used to test categorical variables, what are those numbers in the...
If the chi-square test is used to test categorical variables, what are those numbers in the contingency table? What do they represent? How are they calculated?
Chi-Square Test for Independence Using Chi-Square, we are looking to see if there is a significant...
Chi-Square Test for Independence Using Chi-Square, we are looking to see if there is a significant difference between what we would expect results to be, and what the actual results were. That is, expected vs. observed.   Use alpha = .05 Listed below are data from a survey conducted recently where Males and Females responded to their happiness with their supervisor (this is fictitious data). Response Male Female Total Not at all 23 25 48 Somewhat 13 22 35 Very 26...
The P-value for a chi-square test is always one-tailed. This is true because of all of...
The P-value for a chi-square test is always one-tailed. This is true because of all of the following reasons, EXCEPT: Group of answer choices Observed data that is either higher or lower than the null hypothesis predicts will result in a positive chi-square value. Only a large positive value of chi-square provides stronger evidence to conclude HA. A chi-square distribution is skewed. The chi-square statistic is always positive, unlike a z or t statistic which can be ether positive or...
PLEASE ANSWER ALL QUESTIONS ! 1. When performing a Chi-Square test, what is the critical value...
PLEASE ANSWER ALL QUESTIONS ! 1. When performing a Chi-Square test, what is the critical value between the accept and reject regions for a test with 5 classes and 25 observations at the 5% level of significance? Select one: a. 11.070 b. 2.87 c. 2.60 d. 9.488 2. True or False: A hypothesis is a statement about a population developed for the purpose of testing. Select one: True False 3. If you ACCEPT the null hypothesis while performing a Chi-Square...
You will perform a Chi-Square test and an ANOVA test. For each hypothesis test make sure...
You will perform a Chi-Square test and an ANOVA test. For each hypothesis test make sure to report the following steps: Identify the null hypothesis, Ho, and the alternative hypothesis, Ha. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Find the critical value(s) and identify the rejection region(s). Find the appropriate standardized test statistic. If convenient, use technology. Decide whether to reject or fail to reject the null hypothesis. Interpret the decision in the context of the original...
A chi-square test for independence is being used to evaluate the relationship between two variables. If...
A chi-square test for independence is being used to evaluate the relationship between two variables. If the test has df = 3, what can you conclude about the two variables? One variable consists of 2 categories and the other consists of 3 categories One variable consists of 2 categories and the other consists of 4 categories Both variables consists of 2 categories Both variables consists of 3 categories
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT