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- If my p-value = .322 and my significant level is .05 , thenAccording to Deloitte, through January 25,2006, the majority of companies reporting profits had beaten estimates. Now suppose that for the 4th quarter of 2012, 170 of a random sample of 280 companies reported profits that had beaten estimates. Does the data indicate the proportion of companies in the 4th quarter of 2012 that beat estimates is greater than 56% at α=0.05?The attached data contains Part Quality data of three suppliers. At = 0.05, does Part Quality depend on Supplier, or should the cheapest Supplier be chosen?
- Construct index number of price from the following data byapplying: 1)Paasche’s method Commodity Price Quantty Price QuanttyA 2 8 4 6B 5 10 6 5C 4 14 5 10D 2 19 2 13Consider the following data relating hours spent studying (X) and average grade on course quizzes (Y): X Y 5 6 3 8 4 8 7 10 5 7 6 9 From these observations, can we conclude that hours spent studying caused increases in quiz grades?For a population with μ =100 and σ = 20, what is the X value corresponding to z = -0.50?
- Consider the following data relating hours spent studying (X) and average grade on course quizzes (Y): X Y 5 6 3 8 4 8 7 10 5 7 6 9 From these observations, can we conclude that hours spent studying caused increases in quiz grades? Yes NoThe MAD for the forecast developed using a weighted 2-year moving average with weights of 0.350.35 and 0.650.65 is what?By what percentage is salary predicted to increase if ros increases by 50 points? Does ros have a practically large effect on salary?