Hello! I need some help. See below: Question 1 has a 90% confidence variable and the last 2 have a Z critical value of 2 since no confidence variable is given.

Home Internet Access In a recent year, a study found that 73% of adults ages 1829 had internet access at home. A researcher wanted to estimate the proportion of undergraduate college students (1829 years] with access, so she randomly sampled 188 undergraduates and found that 154 had access. Estimate the hue proportion with 90% condence. Round intermediate answers to ve decimal places. Round your nal answer to one decimal place. D%