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1. A study was conducted at a local college to analyze the average GPA of students graduated from Arizona State in 2012. 100 students graduated from Arizona in 2012 were randomly selected,and the average GPA for the group is 3.5. The value 3.5 is
(i) Statistic
(ii) Parameter
(iii) Cannot be determined
2. The restuarant ratings are usually on a scale from 0 star to 5 stars. The level of this measurement is
(i) Interval
(ii) Nominal
(iii) Ordinal
(iv) Ratio
3. On the Election Day, Michigan News Club organized an exit poll in which specific polling stations were randomly selected and all voters were surveyed as they left those polling stations. This type of sampling is called:
(i) Cluster
(ii) Convenience
(iii) Systematic
the claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.30 and the sample
Dividend is expected to grow 7% a year for next 3 years and then at 5% a year after that. Determine the expected dividend per share for each of the next five years?
Write the multiple regression equation and what is the coefficient of multiple determination?
altitude and temperature listed below are altitudes thousands of feet and outside air temperatures degrees fahrenheit
a sewage plant produces 50000 gallons a day. 20 of the time it produces in excess of 60000 gallons what is the
Suppose that x is normally distributed with a mean of 50 and a standard deviation of 15. What is P(34.55 ≤ x ≤ 72.95)?
At a = 0.05, can you reject claim that at least 52% of adults are more probable to purchase a product when there are free samples?
If the mean (Mu) diastolic blood pressure in a certain age group is 80, and the standard deviation (Sigma) is 10, what is the probability that, in a sample of 100, the sample mean (X) is > 85?
If an individual is selected, find the probability that the individual's pressure will be between 120 and 121.8 mm Hg. Why is the answer to Part a so much smaller than the answer to Part b?
Use the fact that the confidence interval for the mean is in the for x- E to x+ E to compute the sample mean and the mazimal margin of error E.
You flip a coin three times. (a) What is the probability of getting heads on only one of your flips? (b) What is the probability of getting heads on at least one flip?
(a) Construct a histogram of the drying times of polyurethane from the data in Exercise 115. (b) What can be said about the shape of this histogram?
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