Suppose the researchers had been able to randomize 1,000 persons (randomly selected from the same population of persons with migraine headaches) to receive Acupuncture treatments. Suppose a histogram is a
made of individual headache severity scores (three months post-randomization) for these 1,000 individuals. Cot
Which of the following likely describes this histogram?
The
The histograrn will look approximately like a normal distribution because the sample size is large so the Central
Limit Theorem applies.
nu
he histogram will look like a t-distribution with 999 degrees of freedom.
8
The histogram will appear to be right (positively) skewed, with similar mean and standard deviation as the sample D
of n=173.
h
The histogram will appear to be right skewed with a similar mean as the sample of n=173, but with standard
deviation equal to (16 divided by the square root of 1.000).

The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.

It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?

Which expression is equivalent to 16 in exponential form? a) 4 × 4 b) 8 × 2 c) 23 d) 24