Math  /  Data

QuestionCalculate expected values under the null hypothesis for party affiliation and support of full-body scans.
(a) Expectation for Republicans not supporting: 4848 (b) Expectation for Democrats supporting: ?? (c) Expectation for Independents unsure: 2222

Studdy Solution
Plug in the values for the row totals, column totals, and the grand total to calculate the expected frequencies.
(a) For Republicans who would not support the use of full-body scansExpectedfrequency=(177310)/1134=48Expected\, frequency = (177 *310) /1134 =48(b) For Democrats who would support the use of full-body scansExpectedfrequency=(902368)/1134=296Expected\, frequency = (902 *368) /1134 =296(c) For Independents who would not know or not answerExpectedfrequency=(55456)/1134=22Expected\, frequency = (55 *456) /1134 =22So, under the null hypothesis of independence, we would expect48 Republicans to not support the use of full-body scans,296 Democrats to support the use of full-body scans, and22 Independents to not know or not answer.

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