statistics

One of the ways most people relieve stress is to reward themselves with sweets. According

to one study in Food Technology, 46 percent admit to overeating sweet foods when

stressed. Suppose that the 46 percent figure is correct and that a random sample of 100

people is selected.

A. Does the distribution of, the sample proportion of people who relieve stress by

overeating sweet foods, have an approximately normal distribution? If so, what are its

mean and standard deviation?

B. What is the probability that the sample proportion, , exceeds 0.5?

C. What is the probability that lies within the interval 0.35 to 0.55?

D. What might you conclude if the sample proportion were as small as 30 percent?

asked by Alfie

Respond to this Question

First Name

Your Response

Similar Questions

  1. algebra...

    In a school, there are 4 more students in Class A than in Class B, and 4 more students in Class B than in Class C. As a reward for good behavior, a teacher decides to give out some sweets. Every student in class C got 5 more
  2. Maths P5

    Mr Neo has fewer than 200 sweets. He wants to give his class an equal number of sweets. If he gives each pupil 3 sweets, he will have 70 left over. If he gives 5 sweets, he will need 10 more sweets. How many pupils are there in
  3. Maths

    A teacher has 16 boxes of sweets. Each box contains 25 sweets. The teacher shares as many sweets as possible equally among 23 pupils i) How many sweets does each pupil receive? ii) How many sweets are left over ?
  4. word problem

    Rahim has 5 boxes of sweets.Each box contains y sweets.His teacher gives him another 8 sweets. (a) Find the total number of sweets Rahim has in terms of y. (b) If y=4,how many sweets does Rahim have altogether?
  5. Math

    A teacher has fewer than 200 sweets. She wants to give each pupil in her class an equal number of sweets. If she gives each pupil 2 sweets, she will have 70 sweets left over; if she gives 4 each, she will need 10 more sweets. How
  6. math,(fraction)

    Becky bought 25kg of sweets.she kept 1kg of sweets for her use and packed the remaining sweets equally into some packets to distribute among some children.each packet contained 1/2kg of sweets.if each child received one packet of
  7. Finance Math

    Sweets Bakery makes fat-free cookies that cost $1.70 each to prepare. Sweets expects 20% of the cookies to be imperfect. Sweets wants a 40% markup on cost and produces 150 cookies. Assume that Sweets can sell the broken cookies
  8. math

    The owner of a candy store packs all of the sweets from a box into packets of 9, 12, 18 sweets . a. what is the smallest number of sweets a box must contain if no sweets are to remain after packing? b. There are 180 sweets to be
  9. math

    A factory produced 65, 160 sweets. The sweets were packed in packets each holding sweets. The cost of each packet was $72. All the packets were then equally put in 15 cartons. What was the cost of the sweets in each carton?
  10. maths

    there are 12 sweets in a bag. 7 of the sweets are strawberry flavou. 5 of the sweets are lime flavour. harriet takes 2 sweets at random work out the probability that she takes at least one strawberry sweet.

More Similar Questions