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A food company wanted to know if the amount of taste enhancer added to one of its products has any effect. It ran a test by adding eight different amounts and asking a panel of tasters to rank the results. Does there seem to be a relationship between the amount of enhancer and taste?
Test
A
B
C
D
E
F
G
H
Amount of enhancer
22
17
67
35
68
10
37
50
Rank
3
2
8
5
7
1
4
6
An important idea in data interpretation is choosing which graph to use under which circumstances. Describe the benefits of different graphs for different sets of data:
Does thus data support the researchers' hypothesis? Test the relevant hypothesis using a = .1 by first calculating a p-value.
Fixed costs of $9,200 per month and variable costs of 70 cents per unit produced. Each item is sold to retailers at a price that averages 90 cents.
Adults is approximately normal with a mean of 191 lbs. and a standard deviation of 20 lbs. Using the 68-95-99.7 rule. What percent of males weigh more than 211 lbs?
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A local bank wants to install motion detector burglar alarms. Each has a 70% chance of detecting a burglar. If the bank wants to be 99% certain of detecting a burglar how many need to be installed?
The statistic has a normal distribution with a standard deviation of 10 gallons. Find the probability that the family's monthly purchases will be between 86and 96 gallons.
Suppose a consumer group asked 18 consumers to keep a yearly log of their shopping practicesand that the following data represent the number of coupons used by each consumer over theyearly period.81, 68, 70, 100, 94, 47, 66, 70, 82, 110, 105, 60, 21,..
testing for two proportions.one hundred draws are made at random with replacement from box a and 250 are made at random
Can people really identify their favorite brand of cola? Volunteers tasted Coca-Cola Classic, Pepsi, Diet Coke, and Diet Pepsi, with the results shown below.
Suppose that the grams of fat have a normal distribution and form 90%, 95%, and 99% confidence intervals for the mean grams of fat. Based on this data, can we say that the labeling on the package is misleading?
How would your colleagues probably react to such a statement of yours? Is their expected (positive or negative) reaction the local cultural habit in your company or is it a wider position common for people in your country?
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