1.( using r-studio)A news article reports "Americans have differing views on two potentially inconvenient and invasive practices that airports could implement to uncover potential terrorist attacks." This news piece was based on a survey conducted among a random sample of 1,137 adults nationwide, interviewed by telephone November 7-10, 2010, where one of the questions on the survey was "Some airports are now using 'full-body' digital x-ray machines to electronically screen passengers in airport security lines. We would like to investigate whether the responds' answer to this question depends on their "Party Affiliation" ?

Conduct a Chi-square test of independence to the investigation. Hint: Use appropriate R commands discussed in class whenever applicable.

a)Specify your null and alternative hypotheses

b)List the E table, i.e., the expected counts table

c)What is the value of the Chi-square test?

d)What is the p-value of the test?

e)State your conclusion and your risk.

Party Affiliation Republican Democrat Independent Should 264 299 351 Answer Should not 38 55 77 Don't know /No answer 16 15 22 Total 318 369 450