It is 4 multiple choice questions. I need the answers within the hour though if possible. Please do not pick up the questions if the time is not possible for you. Thank you so much! In order to have a greater confidence in the estimation of the population mean, instead of a point estimate, we can use __________. a perfect estimate an interval estimate a deterministic estimate a point estimate A random sample of 100 observations from a population with standard deviation 2.8. produces a mean (xx) = 31.8. Then the 98% confidence interval to estimate the population mean is between ____________. 31.338 and 32.262 31.2512 and 32.3488 31.1476 and 32.4524 31.0804 and 32.5196 A random sample of size n=265 yields = 0.57, then the 95% confidence interval to estimate the population proportion is between__________. 0.531 and 0.609 0.520 and 0.620 0.510 and 0.630 0.499 and 0.641 In the estimation of the population mean when the population is known, to construct a confidence interval for a level of confidence equal to 95%, we use zvalues that leave out, in each of the lower and the upper tails of the normal distribution, an area equal to __________. 0.95 0.05 0.025 0.01