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A tea-drinking Canadian friend of yours claims to have a very refined palate. She tells you that she can tell if, in preparing a cup of tea, milk is first added to the cup and then hot tea poured into the cup, or the hot tea is first poured into the cup and then the milk is added. To test her claims, you prepare six cups of tea. Three have the milk added first and the other three the tea first. In a blind taste test, your friend tastes all six cups and is asked to identify the three that had the milk added first.
A. This setting is NOT binomial. Explain why. (There are four characteristics identified on page 331 of your book).
B. How many different ways are there to select three of the six cups? Please list all of the outcomes in a logical order.
C. If your friend is just guessing, what is the probability that she correctly identifies the three cups with the milk added first?
If the estimated population variance of the change scores is 20, what would the variance of the distribution of the means of change scores be?
Suppose that you work for a newly restructured automotive company with nearly 100,000 employees. You are in charge of purchasing engines from an overseas supplier. Company policy is that you purchase several hundred engines each month to be placed in..
(a) What is the sampling distribution of the mean? You should give a brief explanation of your answer.
can you please help with this question? thank youyou want to determine the average number of hours worked by professors
the alphacor company experiences some type of failure on its computer network on average once every 4 hours. assume
Therefore the team needs a new arena. Determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed.
Bbutton to determine whether the design of the control panel was contributing to the high rate of accidents in the plant. The resulting scores were as follows:
Find the mean and standard deviation of the resulting distribution of sample means for nequals =144
However, actual voting records show that only 61% of eligible voters actually did cast a vote. Does this imply that people lied when responding to the survey?
Calculate an 80% confidence interval for the mean diameter of these trees.
For the data given below, regress one variable on the other. Is there an implication of causality, or are both variables affected by a third?
Given that there were 12 heads in 20 independent coin tosses, calculate The chance that the first toss landed heads.
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