Problem 10 The 2004 General Social Survey found that 73.9% of the adult Americans interviewed claimed to have given a nancial contribution to charity in the previous 12 months. a) Describe the parameter value of interest in this situation. b) If the survey had involved 250 households, determine a 99% confidence interval for this parameter. c) Repeat part b, supposing the survey had involved 500 households. d) Repeat part b, supposing the survey had involved 1000 households. e) Repeat part b, supposing the survey had involved 2000 households. f) Compare the margin of error for these four intervals. Describe how they are related. (Be as specic as possible.) g) Does doubling the sample size cut the margin of error in half? If not, by what factor does the sample size have to be increased in order to cut the margin of error in half? h) The actual survey involved 1334 households. Determine and interpret a 99% condence interval for the parameter