Homework Answers
Solution:-
=> option d. 4
Explanation:-
df = (r-1)(c-1) = (3-1)(3-1) = 2*2 = 4
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QUESTION 16 A researcher is using a chi-square test for independence to evaluate the relationship between...
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Perform a chi-square independence test using the critical value approach, provided the conditions for using the...
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this is the table given Perform a chi-square independence test using the critical value approach, provided...
this is the table
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StatCrunch Instructions: Test of Independence Using
Technology
Next we will use StatCrunch to calculate the expected
counts:
Enter Yes and No in column var1.
Enter the observed counts as they appear in the table above
(not including the totals) into columns var2 and var3.
Rename: var1 as "911", var2 as "No Risk" and var3 as "M to S
Risk"
Choose Stat -> Tables -> Contingency -> with
summary
Select the...
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In order to receive credit for the homework, you must show all steps for doing a chi square test of independence. These steps include: null and alternative hypothesis); critical value; calculations (show work); reject or accept H; results statement using no relationship or a relationship. The operations manager of a company that manufactures tires wants to determine whether there are any differences in the quality of workmanship among the 2 daily shifts. The manager randomly selects 385 tires and carefully...
Effect size for the chi-square test for independence 1.Which of the following statements are correct about the phi-coefficient? Check all that apply. a.It can be used as a measure of the significance...
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Perform a chi-square independence test using the critical value approach, provided the conditions for using the test are met. Be sure to state the hypotheses and the significance level, to obtain the expected frequencies, to obtain the critical value, to compute the value of the test statistic, and to state your conclusion. 160 students who were majoring in either math or English were asked a test question, and the researcher recorded whether they answered the question correctly. The sample results...
this is the table
given
Perform a chi-square independence test using the critical value approach, provided the conditions for using the test are met. Be sure to state the hypotheses and the significance level, to obtain the expected frequencies, to obtain the critical value, to compute the value of the test statistic, and to state your conclusion. 160 students who were majoring in either math or English were asked a test question, and the researcher recorded whether they answered the...
11. Effect size for the chi-square test for independence Aa Aa Which of the following statements are correct about the phi-coefficient? Check all that apply. It is determined only by the proportions in a 2 x 2 data matrix. It is the same as Cramer's V when the data are a 2 x 2 matrix. It can be used as a measure of the significance of a relationship between two dichotomous variables. * It can be used as a measure...
Does the data meet the conditions for the chi-square test?
StatCrunch Instructions: Test of Independence Using
Technology
Next we will use StatCrunch to calculate the expected
counts:
Enter Yes and No in column var1.
Enter the observed counts as they appear in the table above
(not including the totals) into columns var2 and var3.
Rename: var1 as "911", var2 as "No Risk" and var3 as "M to S
Risk"
Choose Stat -> Tables -> Contingency -> with
summary
Select the...
In order to receive credit for the homework, you must show all steps for doing a chi square test of independence. These steps include: null and alternative hypothesis); critical value; calculations (show work); reject or accept H; results statement using no relationship or a relationship. The operations manager of a company that manufactures tires wants to determine whether there are any differences in the quality of workmanship among the 2 daily shifts. The manager randomly selects 385 tires and carefully...
please answer all
Performing a Chi-Square Independence Test The contingency table shows the results of a random sample of 2200 adults classified by their favorite way to eat ice cream and gender. The expected frequencies are displayed in parentheses. At a = 0.01, can you conclude that the adults' favorite ways to eat ice cream are related to gender? Favorite way to eat ice cream Gender Cup Cone Sundae Sandwich Other Male 600 288 204 24 84 Female 410 340...
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