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Choco-Yums candy bars want to know if people, when presented with the choice between Choco-Yums and CrispiePuffs and SweetChunks, are picking the Choco-Yums candy bar more often than they would if they were just picking randomly. In a random sample of 63 customers who were making the choice between the three candy bars, 24 of the customers selected the Choco-Yums candy bar. We want to know if we have convincing evidence that people are picking Choc-Yums more than they would if they were just picking randomly.
-Identify the hypothesis
The following data are the lifetimes (in hours) of 20 certain electrical components: Find a point estimate and 90% confidence interval for the population lower quartile.
If a consumer wants to avoid trans fat as much as possible, which combination of brand and style would you recommend? Why?
in a study of the effectiveness of garlic for lowering cholesterol 17 subjects were treated with garlicin which is
When Edgar finally gets back to the city, what is the probability that he will have an exciting story to tell about how his flashlight and its SuperVolt battery were two of the heroes in his rescue?
according to a survey 90 of senior executives at major u.s corporations felt that the federal budget will not be
the number of traffic accidents occurring in bloomington in a single day is normally distributed with a mean and a
In tests of a speed-reading course, it is found that 10 subjects increased their reading speed by an average of 200 words per minute, with a standard deviation of 75 words. At the 0.10 level, does this sample information suggest that the cours..
Negatively correlated and that the area of the home and the selling price are positively correlated? Use the .05 significance level. Report the p- value of the test.
In a simple random sample of 1000 households, 150 households happen to own a barbecue grill. Based on the characteristics of the population, the expected number of grill owners in the sample was 180.
What is the chance of an individual winning more than $200 dollar in 2 hours playing the type A slot machine?
a researcher placed male rodents in the presence and absence of a conspecific male. cortisol a stress hormone levels
What is the meaning of the subscript ??? notation on the expectd value
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