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You are given the following statistics:
Treatment
14.5 Xr14-05 A consumer organization was concerned about the differences between the advertised sizes of containers and the actual amount of product. In a preliminary study, six packages of three different brands of margarine that are supposed to contain
Statistic
1
2
3
500 ml were measured. The differences from 500 ml
n
4
are listed here. Do these data provide sufficient evi-
x
20
22
25
dence to conclude that differences exist between the
s2 10 10 10
a. Complete the ANOVA table.
b. Repeat part (a) changing the variances to 25 each.
c. Describe the effect on the F-statistic of increasing the sample variances.
you wish to test if there is a difference in the average time male and female students spend studying for a business
Of the 160 guests given the drab green tow- els, only 25% checked out with one or more towels in their possession. At the 0.01 level of significance, can we conclude that the manager's idea is effective in reducing the rate of towel theft?
1. a severe drought affected several western states for 3 years. a christmas tree farmer is worried about the droughts
The average age in the sample was 22.5 years with a standard deviation of 5 years. Construct a 95% confidence interval for the true average age of the consumers.
When X and Y have expected values µX = µY = 0, Theorem 9.4 says that L (Y) = Show that this result is a special case of Theorem 9.7(a) when random vector Y is the 1- dimensional random variable Y.
What is correlation analysis? How can correlation analysis be used in a business decision or examples specifically related to strategy formulation and implementation?
one environmental group did a study of recycling habits in a california community. it found that 72 of the aluminum
uo luxury is a residential rental company that advertises that the average cost of a rental for undergraduate students
In 2007, the IRS audited 1.77% of individual tax returns with income greater than $100,000. What is the probability that two randomly selected returns with income greater than $100,000 will be audited?
MA3110 - Module Correlation and Regression - Is there sufficient evidence to conclude that there is a linear correlation between the proportion of wins and the above difference?
In April, 1982, war broke out between two very unlikely enemies, countries located almost 7,000 miles apart, in a neutral location. Who were the opponents, and generally where did they fight?
super cola sales breakdown is 80 regular soda and 20 diet soda. of the regular soda 60 are purchased by men. of the
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