Mathematics, 28.05.2021 20:30 cici65360
For this problem, carry at least four digits after the decimal in your calculations.
In a marketing survey, a random sample of 1002 supermarket shoppers revealed that 270 always stock up on an item when they find that item at a real bargain price.
(a) Let p represent the proportion of all supermarket shoppers who always stock up on an item when they find a real bargain. Find a point estimate for p.
(b) Find a 95% confidence interval for p.
Give a brief explanation of the meaning of the interval.
a. 5% of all confidence intervals would include the true proportion of shoppers who stock up on bargains.
b. 95% of the confidence intervals created using this method would include the true proportion of shoppers who stock up on bargains.
c. 95% of all confidence intervals would include the true proportion of shoppers who stock up on bargains.
d. 5% of the confidence intervals created using this method ould include the true proportion of shoppers who stock up on bargains.
(c) As a news writer, how would you report the survey results on the percentage of supermarket shoppers who stock up on items when they find the item is a real bargain?
A. Report p.
B. Report p along with the margin of error.
C. Report the margin of error.
D. Report the confidence interval.
What is the margin of error based on a 95% confidence interval?
Answers: 1
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Miranda is braiding her hair.then she will attach beads to the braid.she wants 1_3 of the beads to be red.if the greatest number of beads that will fit on the braid is 12,what other fractions could represent the part of the beads that are red?
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For this problem, carry at least four digits after the decimal in your calculations.
In a marketing...
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