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A random sample of 1000 workers from south India shows that their mean wage is Rs. 47 per week with a standard deviation of Rs. 28. A random sample of 1500 workers from North India gives a mean wage of Rs. 49 per week with a standard deviation of Rs. 40. Is there any significant difference between their mean levels of wages?
Test the hypothesis that there is not relationship between the proneness to use excessive force score and the force score for officers trained at Academy A.
Let X represent the number of tires with low air pressure on a randomly chosen car.
Draw out what this would look like as a histogram and describe the shape of the distribution - what would look like as a histogram
Consider the situations and comment on whether the sample results might cause concern about the quality of the process.
Please read through the case scenario shown below to gain an understanding of the background information and the research study
Find the cumulative distribution function
A computer manufacturer offers a help line that purchasers
The program office budgets $30,000 per program review at the contractor's site. Your concern for "end of year" spending drills is that you have budgeted enough for the reviews (i.e. you are only concerned if the actual costs are higher than the..
A sample of domestic new cars.
a sample of 60 firms was gathered and 50 stated that they spend more than $50 million per year on safety. test the accountants claim at the 0.05 level of significance
A crucial step is offering participants a food reward
Perform a factor analysis on the three variables shown in question 2 above. What do conclude about the factors? Perform another factor analysis that includes the new variable, change in external events. What do you conclude?
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