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A teacher wants to know if students in her biology class did significantly better on an exam after instruction using authentic learning. The scores pre and post test are listed below. Based on an α = .05, what can the teacher conclude?
Pretest:77 79 81 88 67 90 73 82 85 76 71 70
Posttest:80 81 87 89 72 95 77 88 83 79 72 75
Write introduction to STATISTICAL PROCESS CONTROL and Explain the use of SPC tools used at D2D
We are interested in testing to find out whether the variance of the population is vitally more than 0.003
What linear transformation will change sixth grade scores x into new scores xnew= a+bx that have the desired mean and standard deviation?
Given sample data arranged in a frequency distribution table. Use Excel to calculate the sample mean and variance from this data set.
The difference between expected payoff under certainity and expected value of the best act without certainity is the expected:
Construct a 95% confidence interval for the proportion and calculate the P value for the given test.
Illustrate what amount of sales would be required to be a super savings club member. Elucidate amount of sales would be required to be a gold club status.
Tompkins Associates reports that the mean clear height for a Class A warehouse in the Unites States is 22 feet. Suppose clear heights are normally distributed and that the standard deviation is 4 feet.
Estimating the sample standard deviation using normal score - Find the sample standard deviation?
Is there a significant difference in sales dollars of hats between the west side and east side stores at the 5 percent level of significance? (a) State the hypotheses. (b) State the decision rule and sketch it. (c) Find the test statistic and stat..
A fair coin is flipped 3 times. Compute the odds of flipping 3 tails.
You are presented a 90% confidence interval for the difference in population mean scores (with drug - without drug) of (-17.81, -7.24). What can you conclude from this interval?
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