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Senior partners of an accounting firm are concerned about recent complaints by some female managers that they are paid less than their male counterparts. In response to these charges, the partners ask their human resources director to record the salaries of female and male managers with equivalent education, work experience, and job performance. A random sample of these pairs of managers is provided in the file attached.
a. Do these data support the claim made by some female managers within the organizations? Report and interpret the p-value.
b. Assuming a 5% significance level, which values of the sample means.
A large electronics company wants to estimate the proportion of all households that own GPS machines. What sample size is required that would give the maximum error of 2.0% for a 95% confidence interval? An unscientific survey had a result of 30%.
Find the 99% confidence interval for the population proportion.
Computing probability values using normal distribution - How many students earned between $20,000 and $40,000
Given that 30% of US adults are smokers, find the average of the random variable X= # of smokers in a random sample of 50 residents of the USA, also find the variance and standard deviation of X.
Determine the 95% confidence interval for your estimate what data have you utilized as the basis of your predictions what suppositions have you made.
Select two non-parametric tests utilized in business decision making? Give an example of each test with an appropriate business situation.
Choose and calculate the appropriate analysis to compare the anxiety levels of the participants in the CBT treatment to those in the psychodynamic treatment using posttest scores only.Choose and calculate the appropriate analysis to compare the an..
A random sample of stipends of teaching assistants in economics is listed below. Is there sufficient evidence at the alpha=.05 level to conclude that the average stipend different from $15,000? The data is listed below:
She wants to test H0: μ = 0.5 Ha: μ ≠ 0.5 Find the associated P-value. Is the result significant at the 5% level (α = 0.05)? At the 1% level (α = 0.01)?
Find the probability that a women develops breast cancer given that she has a family history of breast cancer._____________
Langewitz, Izakovic, and Wyler (2005) reported that self-hypnosis can significantly reduce hay fever symptoms. Patients with moderate to severe allergic reactions were trained to focus their minds on specific locations where their allergies do not..
The firm examined 35 randomly chosen fax transmissions during the next year, yielding a sample mean of 14.44 with a standard deviation of 4.45 pages. (a) At the .01 level of significance, is the true mean greater than 10? (b) Use Excel to find the..
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