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In an experiment to compare two types of feed with respect to weight gain, twenty pigs were randomly divided into two groups, with each group receiving a different feed. After a certain period of time the weight gain (in kg) for each pig was recorded.
Feed A: 71.6 62.7 68.4 66.2 62.5 70.5 63.5 57.2
Feed B: 66.3 70.7 68.4 72.2 69.8 64.8 68.9 68.2 72.8 73.3 61.2 60.4
(a) Is there a significant difference in the mean weight gain for the two types of feed? (a = .05). Use the Pooled T-test.
(b) Conduct the test in (a) using an appropriate confidence interval.
How many social robots would need to be sampled in order to estimate the proportion ofrobots designed with legs, no wheels to within .075 of its true value with 99%confidence
The Weyerhauser Lumber Company headquartered in Tacoma, Washington, is one of the largest timber and wood product companies in the world. Weyerhauser manufactures plywood at one of its Oregon plants.
A survey of 100 persons of voting age reveals that 60 are male, 30 of whom do not identify with a political party; 50 are members of a political party.
Mmean number of outgoing calls in a random selection of calls? Also, compute the standard deviation. In a selection of 12 calls, what is the probability that less than 3 were outgoing?
Brand preference. In ,l small-scale experimental study of the relation between degree of brand liking (Y) and moisture content (XI) and sweetness (X2 ) of the product, the following results were obtained from the experiment based on a completely ..
You will probably want to use the rule of Simpli?cation at some point in your proof. You need to be careful with that rule! In plain English, the rule says that if you know p and q is true
The mean was 1.016 g/cm2 and the standard deviation was 0.155 g/cm2 . A 95% confidence interval for the mean is (0.984,1.048).
Mention the advantages ofgraphic presentation of statistical data. What are the general rules for graphing the data? Explain how tables, graphs and charts help in the effective presentation of data.
Is there any evidence to suggest the mean water table is less than 12.4 feet? Assume the underlying distribution is normal, σ = 0.07 and use a = 0.025.
has the percentage of registered nurses earning more advanced academic degrees changed? in 1980 55 of registered nurses
1) What is the estimated number of new cancer cases for 2016, for all cancer sites combined? 2) What are the Top 3 Cancer Sites for Incidence (both sexes, all races)
three contestants a b and c each have a balloon and a pistol. from fixed positions they fire at each others balloons.
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