In a survey of 940 Canadian adults, 800 say that the energy situation in Canada is very or fairly serious. 1. Find the point estimate for the population proportion. 0.7553 Tries 1/5 Bible int 2. Construct a 95% confidence interval for the population proportion. (a) The critical value: Tries 0/5 (b) The margin of error: Tries 0/5 (c) The lower limit of the interval: Tries 0/5 (d) The upper limit of the interval: HX|Tries 0/5 3. find the minimum sample size needed to estimate the population proportion at the 99% confidence level in order to ensure that the estimate is accurate within 4 % of the population proportion. (a) The critical value: Tries 0/5 (b) The margin of error: Tries 0/5 (c) The sample size: EX Tries 0/5