A survey was administered to a sample of American college students. Data was gathered regarding their college major and their choice of writing utensil in completing the survey: Observed pen pencil marker crayon Totals ElemEd 16 12 6 9 43 HealthSci 14 8 14 7 43 DigitalMkt 7 6 11 18 42 Totals 37 26 31 34 128 Expected pen pencil marker crayon ElemEd 12.4 8.7 10.4 11.4 HealthSci 12.4 8.7 10.4 11.4 DigitalMkt 12.1 8.5 10.2 11.2 Chi-Squared pen pencil marker crayon ElemEd 1.03 1.22 1.87 0.51 HealthSci 0.20 0.06 1.23 1.71 DigitalMkt 2.18 0.75 0.07 4.20 Test statistic: 15.03 Use full sentences to address the conditions for validity of the Chi-Squared Goodness of fit and whether they’re met for this particular test. Write out the null and alternative hypotheses for this chi-squared test.
- A survey was administered to a sample of American college students. Data was gathered regarding their college major and their choice of writing utensil in completing the survey:
Observed pen pencil marker crayon Totals
ElemEd 16 12 6 9 43
HealthSci 14 8 14 7 43
DigitalMkt 7 6 11 18 42
Totals 37 26 31 34 128
Expected pen pencil marker crayon
ElemEd 12.4 8.7 10.4 11.4
HealthSci 12.4 8.7 10.4 11.4
DigitalMkt 12.1 8.5 10.2 11.2
Chi-Squared pen pencil marker crayon
ElemEd 1.03 1.22 1.87 0.51
HealthSci 0.20 0.06 1.23 1.71
DigitalMkt 2.18 0.75 0.07 4.20 Test statistic: 15.03
- Use full sentences to address the conditions for validity of the Chi-Squared Goodness of fit and whether they’re met for this particular test.
- Write out the null and alternative hypotheses for this chi-squared test.
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