Unit 2 , Section 3.1: Sampling Distributions

1. For each of the following, circle whether the quantity described is a parameter or a statistic and circle the correct notation. a) The mean number of male shoppers in a random sample of 100 taken at each of 10 area Target stores dain for a week. HI parameter or statistic p or b) The difference in proportion of all statistics students at a college who earned an A in statistics and the proportion of all statistics students at the college who failed the course. parameter or statistic pd pr;- or ii; t? 2. In example 3 on the activity, lfwe took samples of size 100 instead of 500, and used the sample proportions to estimate the population proportion: Would the estimates be more accurate or less accurate? Would the standard error be larger or smaller