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The following data are from an independent-measures experiment comparing two treatment conditions. Do these data indicate a significant difference between the treatments at the .05 level of significance?
Treatment 1 Treatment 213 99 57 511 9
How can you can discriminate between data that can be analyzed with the chi square and data that can be analyzed with the ANOVA?
A Federal funding program is available to low income neighborhoods. To qualify for the funding a neighborhood must have a mean household income of less then $15,000 per year.
What is the probability that the team wins tonight and that there will be a large crowd at tomorrow's game?
At the 5 percent level of significance, can we conclude that the mean weight is greater than 16 ounces? Determine the p-value.
To investigate the fluid mechanics of swimming, twenty swimmers each swam a specified distance in a water-filled pool and in a pool where the water was thickened with food grade guar gum to create a syrup-like consistency. Velocity, in meters per sec..
What are the main differences between descriptive and inferential statistics? Give examples of each. When would random sampling not be the best approach to sample selection? Give an example.
Extra college-level training, and rest of the sailors arn't accounted for. How does your sample compare to what you expected to determine? Define null hypothesis.
A sample of 350 lenses and found 5 lenses with surface defects. Formulate an appropriate test for the qualification of the polishing machine using an α = 0.05."
If one person is selected at random from these young ones, find the probability that this person is employed given that the person is male.
To maximize Andre's probability of landing on the net, how far away from the cannon should he position the nearest edge of the net?
Suppose a one tailed t test is being applied to find out if the population mean is less than $120. The level of significance selected is 0.01 and 26 bank accounts were sampled.
Test this problem at 99% confidence and provide conclusion. Would the problem have a similar conclusion if we knew the population standard deviation was $40,000? Why?
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