Thousands of elementary school students were recently given a nationwide standardized exam testing their composition skill. In a random sample of 120 students, 84 passed the exam. Construct a 98% confidence interval estimate for the true proportion of all students who passed the exam, and state your conclusion. Round your answers to three decimal places.

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.

At 6 1/2 cents per pound of string beans how much does 7 pounds cost