Identify the level of measurement: Temperatures of 22 selected refrigerators is an example of a data on what level of measurement?

X ~ N(4, 5) Find the maximum of x in the bottom quartile. (Round to 2 decimal places as needed.)  

Find the indicated probability. Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. A vending machine will only accept coins weighing between 5.48 g and 5.82 g. What percentage of legal quarters will be rejected?

Identify which of the 5 sampling techniques is being used. Five math classes are randomly selected out of 20 and ALL of the students from those classes are surveyed.

Use the following table of algebra and calculus scores. Algebra (x)   36       46      45      43      32      30      22      47    Calculus (y)     77   92   87   81   71   63   53   88   If a hypothesis test was performed on the above data set,  what is the p-value (step 4 of the Linear Regression hypothesis test)?

Examine the statement and tell what misuse of statistics may be involved:In a study of cold symptoms, every one of the subjects with a cold was found to be improved 2 weeks after taking ginger pills.  The study concludes that ginger pills cure colds.

If Z is a standard normal variable, find the probability. P(-0.73 < Z < 2.27)

Answer the question. Use the range rule of thumb for usual values: Minimum = Mean – 2 standard deviations and Maximum = Mean + 2 standard deviations Focus groups of 12 people are randomly selected to discuss products of the Yummy Company. It is determined that the mean number (per group) who recognize the Yummy brand name is 8.8, and the standard deviation is 0.85. Would it be unusual to randomly select 12 people and find that fewer than 5 recognize the Yummy brand name?

In a job interview, in answer to the question, “What can you tell me about yourself?”

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