Homework Answers
The conditions that must be met are:
Option D is correct.
Add Answer to:
What conditions must be met to apply a chi-square test for independence on the Friendship Gender...
Does the data meet the conditions for the chi-square test? StatCrunch Instructions: Test of Independence Using...
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...
When Chi-square distribution is used as a test of independence, the number of degrees of freedom...
When Chi-square distribution is used as a test of independence, the number of degrees of freedom is related to both the number of rows and the number of columns in the contingency table. Select one: True False Question 2 Answer saved Points out of 1.000 Flag question Question text A goodness of fit test can be used to determine if membership in categories of one variable is different as a function of membership in the categories of a second variable...
What is the idea behind the chi-square test for independence? Select one: a. to compare the...
What is the idea behind the chi-square test for independence? Select one: a. to compare the quantile-quantile (Q-Q) plot with what would be expected under independence b. to compare the actual counts in a contingency table with what would be expected under independence c. to compare the cumulative distribution with what would be expected under independence d. none of these choices
Perform a chi-square independence test using the critical value approach, provided the conditions for using the...
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...
The purpose of this activity is to gain experience conducting a chi-square test of independence using...
The purpose of this activity is to gain experience conducting a chi-square test of independence using technology. Recall the report On the Front Line: The Work of First Responders in a Post-9/11 World. We will use data from this report to investigate the question: Are alcohol-related problems among New York firefighters associated with participation in the 9/11 rescue? Here again are our observed data: No Risk for Alcohol Problems Moderate to Severe Risk for alcohol problems Participated in 911 rescue...
-Which assumption can be violated when conducting a chi-square test of independence, yet still allow the...
-Which assumption can be violated when conducting a chi-square test of independence, yet still allow the chi-square value to be calculated? homogeneity of variances expected frequencies random samples independence of observations - If R = 3, C = 3, and alpha is set at .05, what would the critical value be for a chi-square test of independence? 12.592 9.488 7.815 16.919 -Under what condition is the interpretation of Pearson's r and Cramer's V the same? when a chi-square analysis is...
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 16 42...
For a chi-square test of independence for this contingency table, what is the number of degrees of freedom?
You observe 100 randomly selected college students to find out whether they arrive on time or late for their classes. The table below gives a two-way classification for these students.GenderOn TimeLateFemale359Male4313For a chi-square test of independence for this contingency table, what is the number of degrees of freedom?
Which of the following conditions implies that the Central Limit Theorem can be applied? A. The...
Which of the following conditions implies that the Central Limit Theorem can be applied? A. The population is approximately normally distributed B. The sample is approximately normally distributed C. σ is not known D. μ is not known E. μ is known Which of the following conditions implies that the Central Limit Theorem can be applied? A. The sample is approximately normally distributed B. The sample size is at least 30 C. μ is not known D. σ is not...
Perform a chi-square independence test using either p-value or critical value approach, provided the conditions for...
Perform a chi-square independence test using either p-value or 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. 4) The table below shows the age and favorite type of music of 668 randomly selected people. Rock Jazz Classical 15-25 50 85 73 25-35 68...
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...
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...
Most questions answered within 3 hours.
-
find the value z of a standard Normal variable that satisfies
each of the given conditions....
asked 20 minutes ago -
"banana".find('z')
Out[22]: -1
why is this -1
python 3.7
asked 52 seconds ago -
Ilegal Consideration Marna Balin was involved in two automobile
accidents in which she suffered severe injures.She...
asked 9 minutes ago -
Walk through the operation of QuickSort when n = 7 and the input
array is A...
asked 4 minutes ago -
Answer with True or False. Argue the answers
7) The circulation of field B on any...
asked 12 minutes ago -
Chase Co. uses the perpetual inventory method. The inventory
records for Chase reflected the following
Jan...
asked 11 minutes ago -
what are is the correct compression for these two ipv6 ips.. i
keep getting them wrong...
asked 15 minutes ago -
How does the amount of silica gel used change separation?
asked 17 minutes ago -
A barium hydroxide solution is prepared by dissolving 1.91 g1.91
g of Ba(OH)2Ba(OH)2 in water to...
asked 35 minutes ago -
barium oxide with water Express your answer as a chemical
equation. Identify all of the phases...
asked 39 minutes ago -
In the laboratory a "coffee cup"
calorimeter, or constant pressure calorimeter, is
frequently used to determine...
asked 37 minutes ago -
Refer to the following table to answer the next five questions:
Number of Workers Output 1...
asked 41 minutes ago