The contingency table below shows the results of a random sample of 300 state representatives that was conducted to see whether their opinions on a bill are related to their party affiliations. Assuming the row and column classifications are independent, find an estimate for the expected cell count E22. Party Approve Disapprove No opinion Republican 63 30 21 Democrat 75 36 27 Independent 15 24 9
Added by Taylor W.
Step 1
For Republicans: 63 (Approve) + 30 (Disapprove) + 21 (No opinion) = 114 For Democrats: 75 (Approve) + 36 (Disapprove) + 27 (No opinion) = 138 For Independents: 15 (Approve) + 24 (Disapprove) + 9 (No opinion) = 48 For Approve: 63 (Republican) + 75 (Democrat) + 15 Show moreā¦
Show all steps
Close
Your feedback will help us improve your experience
Rakesh Singhi and 76 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
The contingency table below shows the results of random sample of 200 registered voters that was conducted to see whether their opinions on bill are related to their party affiliation. Party Opinion Disapprove Approve No opinion Republican Democrat Independent Find the chi-square test statistic, to test the claim of independence. Round to three decimal places
Cheng Z.
The contingency table below shows the results of a random sample of 200 registered voters that was conducted to see whether their opinions on a bill are related to their party affiliation. Party Opinion Approve Disapprove No Opinion Republican 42 20 14 Democrat 50 24 18 Independent 10 16 6
Lucas F.
Use the information in the Table 3.19 to answer the next eight exercises. The table shows the political party affiliation of each of 67 members of the US Senate in June 2012, and when they are up for reelection. TABLE CANNOT COPY Suppose that a member of the US Senate is randomly selected. Given that the randomly selected senator is up for reelection in November 2016, what is the probability that this senator is a Democrat?
Probability Topics
Contingency Tables
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD