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A random sample of 36 drinks from a soft drink machine has an average content 7.6 ounces with an standard deviation of 0.48 ounces. Test the hypothesis ounces against the alternative hypothesis at the 0.05 level of significance.
Now we would like to evaluate regression equation for X using Y as independent variable.
Use a 0.05 significance level to test the claim that these credit rating are from a population with a mean that is equal to 700.
If a garage is robbed, what is the probability the doors were left open?
What is the probability that a visually impaired student gets less than 6.9 hours of sleep?
The alternative hypothesis is true. In this case the consumer advocacy group will have, A consumer advocacy group doubts this claim and tests the hypotheses
Describe appropriate treatment means μ1, μ2 and μ3. After that Test for statistically significant differences between these treatment means. Set α = 0.05.
Use a 1% level of significance to test the claim that there are more calls during the night than in the day.
Develop a probability for the number of students in the sample who watch soap operas.
Using the probabilities above what is the expected size of family you draw?
Sixty-four students in an introductory college economics class were asked how many credits they had earned in college, and how certain they were about their choice of major.
The professor wishes to use a random-number table to determine which letter choice should correspond to the correct answer for a question.
Make an interval estimate the population means score for the daycare children so that you are 95% confident that the true mean is in your interval.
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