Question

an agricultural researcher takes a simple random sample of 400 English carrot farms. for the sample she finds that 120 of the farms require irrigation in two of the farms have over 100 acres. which of the following is an approximate 99% confidence interval for the percentage of farms that require irrigation?

a. 24% to 36%

b. 25% to 35%

c. 26% to 34%

d. a 99% confidence interval is not possible only 90% and 95% confidence intervals are possible

2. which of the following is an approximate 90% confidence interval for the percentage of farms that have over 100 acres?

a. 0.2% to 1.8%

b. .1% to 1.1%

c. 26% to 34%

d. a 90% confidence interval is not possible only 95% and 99% confidence intervals are possible

Answer 1