Using normal distribution

critical probability

critical value for the critical probability is CV = 1.96
standard error

margin of error = CV*SE = 1.96 * 0.5 = 0.98
95% confidence interval is between μ + 0.98 and <span>μ - 0.98, which is (19.62, 21.58)</span>
Answer:
three
Step-by-step explanation:
24) 49pi / approximately 153.94 ft
Answer:sorry eu
Step-by-step explanation:não falo inglês
Answer:
36
Step-by-step explanation:20% of 30 is 6 so you add 6 on 30