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The amount of a brand of soda in 12-ounces can is approx. normal with a mean of 12.1 ounces and a standard deviation of 0.15 ounces.
A) What is the probability that a randomly chosen can contains more than 12.3 ounces? Less than 11.9 ounces?
B) What percentage of the soda can contains less than the advertised 12 ounces?
What is 95% confidence interval estimate for average number of years served by all Supreme Court justices?
Car Emissions: Listed below are measured amounts of greenhouse gas emissions from cars in three different categories. The measurements are in tons per year, expressed as CO2 equivalents.
At α = 0.01, is the degree of certainty independent of credits earned?
Infer that the difference in the level of satisfaction with service between the two branches.
A business owner decides to use a binomial distribution to solve one of his problems.
Consumer Review posts reviews and ratings of a variety of products on internet. The following is a sample of 20 speaker systems and their ratings (www.audioreviews.com).
We can think of this as the value of mew that maximizes f(y), the probability that our observed value of y occurs.
You take a random sample around town and calculate a p-value for your hypothesis test of 0.0913. What is the appropriate conclusion? Conclude at the 5% level of significance.
An electrical firm manufactures electric light bulbs that have a length of life which is normally distributed with mean and standard deviation equal to 500 and 50 hours, respectively.
Construct a 95% confidence interval for the population mean.
The ANOVA summary table below is the result of a regression of sales on year of sales. Is the relationship statistically significant at .05? Comment.
Which of the following is true about a 95% confidence interval of the mean of a given sample:
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