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To compare three brands of computer keyboards, four data entry specialists were randomly selected. Each specialist used all three keyboards to enter the same kind of text material for 10 minutes, and the number of words entered per minute was recorded. The data obtained are given in the table below. Using these data, SST = 392.6667, SSB = 143.54833, and SSE = 2.6667.
Keyboard Brand
Data Entry Specialist A B C
1 77 67 63
2 71 62 59
3 74 63 59
4 67 57 54
Use Tukey simultaneous 95 per cent confidence intervals to make pairwise comparisons of the keyboard brand effects on the mean number of words entered per minute. Which keyboard brand maximizes the mean number of words entered per minute?
Systematic Sampling In Systematic Sampling each element has an equal chance of being selected, but each sample does not have the same chance of being selected. Here,
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For a distribution of scores with = 82 and standard deviation = 2.5, find the following: (Don't forget to sketch the normal curve to help you visualize what you are trying to fi
advantage and disadvantage
just wondering what would be the cost to complete a stats assignment
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i need to solve couple questions on a data set ?
give a elementary example for characterstics of index number
A country''s national accounts are assumed to look as follows: GDP 1180 VAT and taxes 140 Commodity subsidies 60 Raw material and consumables 530 1. Calculate GVA 2. Calculate t
Using a random sample of 670 individuals for the population of people in the workforce in 1976, we want to estimate the impact of education on wages. Let wage denote hourly wage in
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