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A recent study of breast cancer revealed that 13% of the women in the sample used antibiotics more than 500 days in their lifetime. Further, 79% of these "heavy antibiotics users" developed breast cancer. According to the American Cancer Society, one in twelve women will develop breast cancer at some time in her life. Of the numbers mentioned, which are parameters?
Is there a method which is accepted across industries for determining the minimum size of valid sample? N>50 +(8m aka 8 times the number of independent variables)
Critically illustrate out the characteristics of a standard normal distribution? Can two distributions with the same mean and different standard distributions be considered normal?
The ANOVA summary table below is the result of a regression of sales on year of sales. Is the relationship statistically significant at .05? Comment.
Use information from the modular background readings as well as any good quality resource you can find. Please cite all sources and provide a reference list at the end of your paper.
Any value which is based on having measured a sample is called:
Hypothesis test for one population mean - What is the alternative hypothesis and What is the null hypothesis?
Correlation based on Scatter Plot - Draw the scatter plot for the variables.
For monthly volume of 300 tables, find out total cost, total revenue, and profit.
Explain how you can determine n3 from knowing n1 and n2. Thus, the multinomial distribution of (n1, n2, n3) is actually two-dimensional.
What would you predict the price per share to be if 95 million shares were offered?
Given sample data arranged in a frequency distribution table. Use Excel to calculate the sample mean and variance from this data set.
One approach would be to contact every psychology graduate student you know and ask them to fill out a questionnaire about it.
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