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A clinical trial is conducted to investigate the effectiveness of an experimental drug in reducing preterm delivery to a drug considered standard care and to placebo. Pregnancy women are enrolled and randomly assigned to receive the experiment drug, the standard drug or placebo. Women are followed through delivery and classified as delivering preterm (<37weeks) or not. The data are shown below.
Is there a statistically significant difference in the proportions of women delivering preterm among the three treatment groups? Apply the test at a 5% level of significance.
1) Do:
2) Critical Value:
3) Computed Value
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Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.
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Estimate the population mean
Conduct a marketing experiment in which students are to taste one of two different brands of soft drink
Find out the probability
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