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A company produces packets of soap powder labeled "Giant Size 33 oz". Past testing of the production process has allowed the quality control (QC) manager to determined that when the process is properly calibrated, the actual weight of soap powder in such a box has a Normal distribution with mean of 33 oz and standard deviation of 0.7 oz. The production specifications indicate that the weight of each box should be in the range from 32 oz. to 34 oz. A box of soap is considered underweight if it weighs less than 32 oz.
If the process is properly calibrated based on the distribution given above, what is the proportion of boxes that are NOT underweight?
Describe the population of interest and calculate the numerical value of the statistic that that the EPA will use to estimate p. Construct a 95% confidence interval for the proportion of Americans who live in neighborhoods with acceptable levels of ..
The total population of car passengers involved in traffic accidents are classified into six categories: two factors (one with 2 levels and one with 3 levels) crossed.
question let wi be the power received by the mobile at distance i from the base station. the probability distribution
Far separated sample means + differences of sample means are large compared to their internal (within) variability! Which of the following examples indicate group diff"s are "large"?
Jose scores 842 on the SAT. Assuming that both tests measure the same thing, what score on the ACT is equivalent to Jose's SAT score?
Are stock splits beneficial to stockholders? SNL Securities studied stock splits in the banking industry over an 18-month period and found that stock splits tended to increase the value of an individual stock holding.
the fill volume of an automated filling machine used for filling cans of carbonated beverage is normally distributed
It is known that the variance of a population equals 484. A random sample of 81 observations is going to be taken from the population. With a .80 probability, what is the sampling error?
wells fargo bankacircs call center has representatives that speak both english and spanish. a random sample of 11 calls
1- in general when is the median preferred to the mean as measure of location?2- in general when is the mode preferred
The issue of how much should be spent to solve particular U.S. social problems is a complex matter, and people have diverse and conflicting ideas on these issues.
Can we conclude from this that most workers there earn between $25 and $35 per hour? Is this the right interpretation for the margin of error?
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