5. Suppose A Researcher Is Using A One-Way Chi-Square Test To Determine Whether People Have A Significant Preference Among Four Fast-Food Restaurants. The Null Hypothesis Would State That: 6. 100 There Is A Real Preference In The Sample B. One-Fourth Of The Population Prefers Each Restaurant C. One-Fourth Of The Sample Prefers Each Restaurant D. One

 

 

 

5. 6. Suppose a researcher is using a one-way Chi-square test to determine whether people have a significant preference among four fast-food restaurants. The null hypothesis would state that: a. b. c. d. there is a real preference in the sample one-fourth of the population prefers each restaurant one-fourth of the sample prefers each restaurant one restaurant is preferred over the others in the population Suppose a researcher asks 600 participants to state their preference among 5 flavors of ice cream. In this study, the expected frequency (E) value w e would be: 7. a. 100 b. 150 c. 120 d. 80 Suppose a one-way Chi-square test has degrees of freedom (df) = 4. How many categories or 'items' were used to classify the individuals in the sample? a. b. 3 8. c. d. 4 Suppose a sample of 300 participants is classified into one of 4 categories or 'items'. If the results are analyzed with a one-way Chi-square test, what degrees of freedom (df) value should be used? a. 5 b. 4 c. 2 9. d. Suppose a researcher used a sample of 500 participants to determine if there is a significant preference between 4 flavors of yogurt. Each individual tastes all 4 flavors and then selects his/her favorite. If the data are evaluated with a one-way Chi-square test using the .05 level of significance, how large does the calculated value need to be to reject the null hypothesis (remember to round off all decimals to 2 places)? a. Equal to or greater than 5.99 b. Less than 5.99 c. Equal to or greater than 7.82 d. Equal to or greater than 3.84 10. Suppose a researcher used a sample of 600 students to determine if there is a significant preference between 4 designs for a phone. If a calculated value of Chi- square of 8.28 is found, what decision should the researcher make? a. b. c. d. There is a significant preference at both the .05 level of significance and the .01 level of significance There is no significant preference at any level of significance There is a significant preference at the .05 level of significance but not at the .01 level of significance There is a significant preference at the .01 level of significance but not at the .05 level of significance