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The number of gallons of paint that Home Depot sells in a given day is normally distributed with a mean of 230 gallons and a standard deviation of 28 gallons (I realize that the distribution is probably different for weekends compared to weekdays, but just assume everyday has the distribution). How many gallons of paint have to be sold in a given day in order for that day to be in the lowest 1% of the number of gallons sold? (please round your answer to 2 decimal places)
the manager of the all-night corporation recently conducted a survey of 196 of its employees to determine the average
Identify a research question from your professional life, research interests, or everyday experience that could be addressed by this analysis.
As sample size increases, the standard error of M _______________ .
If the gender-selection method has no effect and boys and girls are equally likely, find the mean number of boys born in groups of 152. Round to the nearest whole number.
Population standard deviation of 4 inches. For any one person selected at random, find out the probability that their height will be?
Using α = 0.05, does this sample provide enough evidence to conclude that the average utility bill in Delaware was lower in the winter of 2011-2012 than it was in the winter of 2010-2011?
A manufacturer claims that the life span of its tires is 52,000 miles. You work for a consumer protection agency and you are testing these tires. Assume the life spans of the tires are normally distributed.
Was your test one-tail upper tail, lower tail, or two-tail? Explain why you chose that kind of test in this situation. Explain what your P-value means in this context.
The critical F value with 6 numerator and 60 denominator degrees of freedom at α = .05 is:
A 90% confidence interval for the mean Math SAT score mu for the population of seniors is what? (Assume the population of Math SAT scores for seniors in the district is approximately normally distributed.
create a binomial distribution. compute the n at 10 100 1000 and
find the z-score location of vertical line that separates normal distribution as described in each of the followinga.
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