Mathematics, 18.07.2020 21:01 destinywashere101

In a recent poll, 45% of survey respondents said that, if they only had one child, they would prefer the child to be a boy. Suppose you conducted a survey of 130 randomly selected students on your campus and find that 72 of them would prefer a boy.

Required:
a. Use the normal approximation to the binomial to approximate the probability that, in a random sample of 150 students, at least 82 would prefer a boy, assuming the true percentage is 46%.
b. Does this result contradict the poll? Explain.

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 16:20, zay65307

Two positive integers are 3 units apart on a number line. their product is 108. which equation can be used to solve for m, the greater integer? m(m – 3) = 108 m(m + 3) = 108 (m + 3)(m – 3) = 108 (m – 12)(m – 9) = 108

Answers: 1

continue

Mathematics, 21.06.2019 18:30, BECKX6770

You love to play soccer! you make a shot at the net 8 times during a game! of those 8 attempts, you score twice. what percent of the time did you score?

Answers: 2

continue

Mathematics, 21.06.2019 19:00, kadams3836

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.

Answers: 1

continue

Mathematics, 21.06.2019 22:00, jnkbragg3696

Problem situation: caren is making rice and beans. she can spend no more than $10 on ingredients. she buys one bag of rice for $4.99. beans cost $0.74 per pound. how many pounds of beans, x, can she buy? inequality that represents this situation: 10≥4.99+0.74x drag each number to show if it is a solution to both the inequality and the problem situation, to the inequality only, or if it is not a solution.

Answers: 1

continue

You know the right answer?

In a recent poll, 45% of survey respondents said that, if they only had one child, they would prefer...