Under which circumstances are chi-square tests biased? ___
The solution to this problem is given by
Under which circumstances are chi-square tests biased? ___ if any expected value is less than 1.0...
A chi-square test should not be used if any expected frequency is less than five. True False
In a chi-square test, what would it mean if the P-value were less than 5%? a. That there is no real difference between observed and expected values. b. That there is a difference between observed and expected values. c. That any difference between observed and expected values is probably not due to random chance. d. a and c are true e. b and c are true
Which value is not required for the chi‑square test? a. expected progeny counts b.expected progeny ratio c. age of parents at the time of cross d. degree of freedom e. observed progeny counts
-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...
Describe explain what the results mean Chi-Square Tests Value df Asymptotic Significance (2-sided) Pearson Chi-Square 65.638a 3 .000 Likelihood Ratio 50.911 3 .000 Linear-by-Linear Association 46.587 1 .000 N of Valid Cases 495 a. 1 cells (12.5%) have expected count less than 5. The minimum expected count is 4.82.
Question 1 For Chi Square tests, all tests discussed can be used for both experiments and surveys True False Question 2 Chi Square tests have an assumption of normality True False Question 3 For a Chi Square test of Association, you ask if mouse hair color (black, grey or white) is associated with whisker length (short, medium or long). The df for this analysis would be: Give answer as X Question 4 The value of X^2 can be negative, zero,...
In performing a chi-square goodness-of-fit test for a normal distribution, a researcher wants to make sure that all of the expected cell frequencies are at least five. The sample is divided into 7 intervals. The second through the sixth intervals all have expected cell frequencies of at least five. The first and the last intervals have expected cell frequencies of 1.5 each. After adjusting the number of intervals, the degrees of freedom for the chi-square statistic is O 2 3...
1. These questions pertain to Table 1. a. How many chi-square tests of independence are performed? What are each of the bivariable associations tested [list 2 pairs of associations]? b. Which of the relationships are significant? c. In everyday language, describe what is shown about the relationship between age and type of drinking (light/moderate) among all students? Among drinkers only? d. How many degrees of freedom are there in the analysis of religion by type of drinker among all students?...
5. The chi-square test for goodness of fit - No difference from a known population Aa Aa Suppose you are reading a study conducted in the year 2000 about welfare recipients in the United States. The authors report the following frequency data on the household size of the 2,352 welfare recipients in their random sample: Observed Frequencies Household Size 5-or-more-person 4-person 3-person 2-person 1-person 282 753 588 400 329 You wonder if welfare recipients tend to live in different-sized households...
Chi Square Value is 4.9. Sorry for not including it QUESTION 8 A cross was made and the following phenotypes were obtained: 74 BE Be DE be What is the chi square value for all classes? O 0.5 O 12.1 023 4.9 None of the above QUESTION 9 4 points Save Answer Given the chi square value from the last question and the critical values table here, what is your approximate p-value? TABLE 3-1 Critical Values of the x Distribution...