res 342 week 4 Holly Hyatt

res 342 week 4 Holly Hyatt - 15.18 Sixty-four students in...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 15.18 Sixty-four students in an introductory college economics class were asked how many credits they had earned in college, and how certain they were about their choice of major. Research question: At a= .01, is the degree of certainty independent of credits earned? Credits Earned Very Uncertain Somewhat Certain Very Certain Row Total 0-9 12 8 3 23 10-59 8 4 10 22 60 or more 1 7 11 19 Col Total 21 19 24 64 Very Uncertain Somewhat Certain Very Certain Total 0-9 Observed 12 8 3 23 Expected 7.55 6.83 8.63 23.00 21824 Observed 8 4 10 22 Expected 7.22 6.53 8.25 22.00 60 > Observed 1 7 11 19 Expected 6.23 5.64 7.13 19.00 Total Observed 21 19 24 64 Expected 21.00 19.00 24.00 64.00 14.76 chi-square 4 df .0052 p-value Test statistic = 14.76 P-value = .0052 which is less than our alpha of .01 so we reject the null hypothesis and say that there is a difference in the amount of credits earned and the certainty of choosing a major. 15.22 A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location. Research question: At a= .05, does vehicle type vary by mall location? were examined in each location....
View Full Document

Page1 / 5

res 342 week 4 Holly Hyatt - 15.18 Sixty-four students in...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online