Standard deviation of the average contents
A machine fills cans of soda which are labeled "12 ounces" according to a normal distribution with mean 12.1 ounces and standard deviation 0.1 ounces. If I buy a 12-pack of the soda, what is the standard deviation of the average contents?
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The mean clotting time of blood is 7.35 seconds, with a standard deviation of 0.35 seconds. What is the probability that blood clotting time will be less than 7 seconds?
One of the requirements of a probability distribution is that the sum of the probabilities must be 1 (with a small amount of leeway alowed for rounding errors). what is the justification for this requirement?
A trucking firm delivers appliances for a large retail operation. The packages (or crates) have a mean weight of 298 lb. and a variance of 2704. (Give your answers correct to four decimal places.)
What is a research question that you would like to answer? Write the null and research hypotheses. Would you use a one- or two-tailed test? Why?
In a large American university in 1969, the male and female professors were sample independently, yielding the following annual salaries (in thousand of dollars):
For each of the following statements, give the null hypothesis (Ho), and the alternate hypothesis (H1).
One environmental group did a study of recycling habits in a California community. It found that 72% of the aluminum cans sold in the area were recycled. (Round your answers to four decimal places.)
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Can you please summarize the key points related to Post-Traumatic Stress Disorder (PTSD) as classified in the DSM-5, including its criteria
Teenagers understand well that death is inevitable and that they themselves will die one day. What typical adolescent behavior seemingly contradicts this knowl
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Question: Education is important because it helps children develop their cognitive, behavioral, and psychomotor skills.
Provide two recommendations for setting up and organizing small groups during classroom instruction and explain why you think each is important
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