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-Joann takes the MCAT because she plans to apply to Medical School, and Hannah takes the LSAT because she plans to apply to Law School. Scores on the MCAT follow a Normal distribution with a mean of 505.6 points and a standard deviation of 9.3 points. Scores on the LSAT follow a Normal distribution with a mean of 150.7 points and a standard deviation of 10.2 points. If Joann earns 515 points on the MCAT and Hannah earns 175 points on the LSAT, who performed better on their respective test?
-Joann
-Hannah
-Both Joann and Hannah performed equally well.
-It's impossible to compare scores on two totally different tests, so this question cannot be answered.
What can you say about the results of the hypothesis test: H0: mean = 5 vs. H1: mean not equal to 5 tested using the same sample at the same level of significance? reject H0 in the second test and do not reject H0 in the second test
Suppose a group of three Harper College students will be selected from a class that has 12 men and 16 women. What is the probability the group has at least one woman? Interpret this probability in context.
In each of the following situations, describe the sample as an SRS, a stratified random sample, a multistage sample, or a voluntary response sample.
Using a two-tailed test at a 0.05 level of significance, state the decision to retain or reject the null hypothesis.
The Social Studies teacher received the following scores from her students: 100, 34, 88, 75, 30, 90. The range in this data set is calculated by subtracting the lowest value from the highest value.
Test at the 5% level whether the incidence of smoking depends on the age category
Estimate the percentage of the population (from which this sample was taken) who would be unable to identify your product.
The state average is 50 the school wants to know is the third graders score greater than state. Perform hypothesis and compute p value.
If 1285 customers participated in the survey, what is the margin of error and what is the interval estimate of the population proportion of customers using the Internet to buy gifts? Use 95% confidence
1. Jackson (2012), even-numbered chapter exercises, p 360. 2. Describe the advantages and disadvantages of quasi-experiments? What is the fundamental weakness of a quasi-experimental design? Why is it a weakness? Does its weakness always matter? 3...
A. Can you break it down so I can explain it to someone who is having a hard time understanding the process to the answer in detail?
an experiment consists of drawing one marble from a box that contains a mixture of red white and blue marbles.1.
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