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Given the following data, 1) how do you make Excel create a scatter diagram for you? 2) If you were to draw a line through the points, how straight would the line be? 3) What is the coefficient of determination - r2 for this data, and more importantly, 4) what does it mean?
Employees Orders received
1 12
2 10
4 9
3 11
5 12
4 15
Suppose the people have weights that are normally distributed with a mean of 164lb and a standard deviation of 30lb. Find the probability?
You have to determine that your cutoff value at level a = 0.05 is 1.645 when testing whether the mean of a population is significantly different from 1.5. If you calculate a test statistic of 1.8 what is the proper conclusion?
Determine the probability that exactly 8 of them started smoking before 18 years of age.
What proportion of the variability in steel shipments for motor vehicles is described by regression equation?
Explain your answer to someone who is familiar with the t test for a single sample, but not with the t test for independent means.
Use relative frequencies to estimate the probability that a seed will germinate, What is your estimate?
A random sample of 1440 current job applicants results in 61 failures (based loosely on data from the American Management Association).
Determine expectation of number of vehicles passing through this specified point in ten minutes.
Determine mean and standard deviation for number of erroneous returns per batch.
The nation health department has concerns with the chlorine level of 0.4% mg/mL at a local water park raises to unsafe level.
Use the following data to write the normal equations of the linear regression between Y and X, and find the least squares regression.
Determine what analysis would you do on each problem (i.e., one-sample z-test, one-sample t-test, proportion test, two-sample independent t-test, or paired test)?
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