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Find out the probability using Normal distribution. According to Advertising Age, average base salary for women working as copywriters in advertising firms is higher than average base salary for men. The average base salary for women is $67,000 and the average base salary for men is $65,500 (Working Women, July/August 2000). Suppose salaries are normally distributed and that the standard deviation is $7000 for both men and women.
a.What is the probability of woman receiving a salary in excess of $75,000.
b.What is the probability of man receiving a salary in excess of $75,000.
c.What is the probability of woman receiving a salary below $50,000.
d.How much would a woman have to make to have a higher salary than 99 percent of her male counterparts?
Perform a posthoc test that is suitable if we assume that group 7 is a control group and that the other are different treatment groups and that we are only interested in finding significant treatments, not to compare them.
Determine the calculated value of the test statistic? What distribution does test statistic have when null hypothesis is true?
What is the best prediction for the number of products sold based on advertising costs of $7000?
Determine probability of waiting less than 12 minutes between successive speeders. By using cumulative distribution function of X.
Describe the data appear the strength of the relationship among variables is sufficient to warrant using linear regression forecasting.
Use the t test to determine whether the slope of the regression model is significant at α = 0.05.
A probability value of .25 means that an event will occur:
Using ANOVA, determine if there is a significant difference in the six year graduation rate by type.
If p denotes the p -value of the corresponding hypothesis test, which of the following is true?
Be certain to mention the direction of the relationship, the strength of the relationship, and whether our findings are statistically significant
The dimension is supposed to be 224 mm and the variability of the manufacturing process is unknown. Is there evidence that the mean dimension is not 224 mm?
Extra college-level training, and rest of the sailors arn't accounted for. How does your sample compare to what you expected to determine? Define null hypothesis.
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