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The inspection division of the Lee County Weights and Measures Department is interested in estimating the actual amount of soft drink that is placed in 2-liter bottles at the local bottling plant of a large nationally known soft-drink company. The bottling plant has informed the inspection division that the standard deviation for 2-liter bottles is 0.05 liter. A random sample of one hundred 2-liter bottles obtained from this bottling plant indicates a sample average of 1.99 liters. Set up a 95% confidence interval estimate of the true average amount of soft drink in each bottle.
The lifetime of African Cichlids is unknown but the sample of 75 cichlids were taken and its mean life time was 5.2 years with a margin error of 420 days for 95% confidence a) What is the 95% confidence interval for the lifetime of the African fish..
A bond issued by the state of Illinois is priced to yield 5.00%. If you are in a 24% tax bracket this bond would provide you
a recent article reported that there are approximately 11 minutes of actual playing time in a typical national football
lester hollar is vice president for human resources for a large manufacturing company. in recent years he has noticed
questionthe effect of exercise on the amount of lactic acid in the blood of sportsmen was examined in a study. eight
Differentiate between the following: A probability mass function and a probability density function.
a biologist is studying the gestation period of domestic dogs. fifteen dogs are observed during pregnancy and are found
Find the probabilities exactly one heart appears in my hand (of 13 cards); at least 7 cards from a single suit appear in my hand;
Construct appropriate control charts and comment on the performance level. What are the chances of meeting a goal of no more than a 10-minute delay?
A study by Kahneman and Tversky (1982, p. 496) asked people the following question: "Linda is 31 years old, single, outspoken, and very bright.
Use a 0.01 significance level to test the claim that the selection process is biased against Americans of Mexican ancestry. Does the jury selection system appear to be fair?
in an experiment involving matched pairs a sample of 13 pairs of observations is collected. the degree of freedom for
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