Please check work thanks. Question Help A marketing research firm is conducting
ID: 3045888 • Letter: P
Question
Please check work thanks.
Question Help A marketing research firm is conducting a study to determine if there is a relationship between an individual's age and the individual's preferred source of news. The research firm asked 1,000 individuals to list their preferred source for news; newspaper, radio and television, or the Internet. The accompanying results were obtained. At the 0.01 level of significance, can the marketing research firm conclude that there is a relationship between the age of the individual and the individual's preferred source for news? Click the icon to view the results of the study Determine the null and altemative hypotheses. Choose the correct answer below. Results of the study A. Ha: The mean age for each preferred news source are equal HA: At least one mean for each preferred news source is not equal. Ho: Age of the individ HA: Age of the individual is independent of preferred news source O B. ual is not independent of preferred news source. Full data set Preferred News Source Newspaper Radio/T Internet Age of Respondent Over 50 146 87 20-30 41-50 95 31-40 C. H: Age of the individual is independent of preferred news source HA: Age of the individual is not independent of preferred news source. 28 103 125 113 37 D. Ho. At least one mean for each preferred news source is not equal. HA: The mean age for each preferred news source are equal Print Done Calculate the test statistic. Click to select your answer(s).Explanation / Answer
all of your answer are correct ;
just for reference I m putting chi square table:
Observed Oi 20-30 31-40 41-50 >50 Total newspaper 19 61 95 146 321 radio/tv 28 125 171 87 411 internet 103 113 37 15 268 Total 150 299 303 248 1000 Expected Ei=row*column/total 20-30 31-40 41-50 >50 Total newspaper 48.150 95.979 97.263 79.608 321 radio/tv 61.650 122.889 124.533 101.928 411 internet 40.200 80.132 81.204 66.464 268 Total 150 299 303 248 1000 chi square =(Oi-Ei)2/Ei 20-30 31-40 41-50 >50 Total newspaper 17.6474 12.7479 0.0527 55.3700 85.818 radio/tv 18.3670 0.0363 17.3382 2.1863 37.928 internet 98.1055 13.4816 24.0628 39.8493 175.499 Total 134.120 26.266 41.454 97.406 299.24