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The following data were obtained from an independent measures research study comparing three treatment conditions. Use an ANOVA with alpha=.05 to determine whether there are any significant mean differences among the treatments.
Treatment
1 11 111 N=14
2 5 7 G=425 2 3 Ex2= 1820 1 61 2 422
T=12 T=10 T= 20ss=14 ss=9 ss=10
If a lot is known to contain 10% defective items, find out the probability that lot will be rejected? Accepted?
The analysis needs to be re-run adding the error into the regression sum of squares.
Scores on a test have a mean of 73 and Q3 is 81. The scores have a distribution that is approximately normal. Find P90.
Based on our poll what is the margin of error of the proportion of voters favoring the incumbent?
In a random sample of 53 concrete specimens, the average porosity (in percent) was 21.6 and the standard deviation was 3.2. a) Find a 90% confidence interval for the mean porosity of specimens of this type of concrete.
A random sample of 16 ages is drawn from the population, and we find the sample mean of these observations to be μ = 8.76
Do you think that all random samples taken from the same population will lead to the same result?
Sixty-four students in an introductory college economics class were asked how many credits they had earned in college, and how certain they were about their choice of major.
A population of scores has p = 44. In this population, an X value of 40 corresponds to z = - 0.50. What is the population standard deviation.
Explain the difference between multiple independent variables and multiple levels of independent variables. Which is better?
Test the mean cholesterol content in the egg is greater than 2.5 percent
Keith's florist has 18 delivery trucks used mainly to deliver flowers in the SC area. Of these 18 trucks, 5 have brake problems. A sample of 4 trucks is randomly selected. What is the probability that 2 of those defective have defective braked. Ro..
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