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The fill volume of an automated filling machine used for filling cans of carbonated beverage is normally distributed with a mean of 12.2 fluid ounces and a standard deviation of 0.1 fluid ounce. a) What is the probability a fill volume is less than 12 fluid ounces?b) If all cans less than 12.1 or greater than 12.6 ounces are scrapped, what proportion of cans is scrapped?c) Determine specifications (in ounces) that are symmetric about the mean that include 99% of all cans.
A survey found that the variance of the rental rates on 8 cars at the airport was 35.7 while the variance of the rental rates on 5 cars down town was 50.4. What test value should be used in a F test?
a batch of 20 used automobile alternators contains 4 defectives. if 3 alternators are sampled at random find the
a study found that 41 of assisted reproductive technology art cycles resulted in pregnancies. twenty-six precent of the
one sample has n 8 and ss 21 and a second sample has n 8 and ss 35. what is the pooled variance for the two
a survey showed that 17 of households spend more than 100 per week on groceries. assume the population proportion is
Find the probability that in a given month a) there are exactly 9 days with 0.01 inch or more precipitation, b) there are at most 9 days with 0.01 inch or more precipitation.
Assuming the validity of this premise, among 25 randomly selected current customers, what is the probability that between 2 and 6 (inclusive) qualify for membership?
In total, of 1000 applications they got from men, they hired 625, or 62.5%. Based on numbers presented, what do you believe of the discrimination claim?
while writing an article on the high cost of college education a reporter took a random sample of the cost of new
to find the sample size needed for a hypothesis test if ho mu10 ha mult10 sigma is unknown alpha 0.01 beta 0.05 and e
a weight lifter puts an x-pound weight on each side of a bar. a weight 5 pounds heavier than the first is then added to
Given the same significance level, a ________ value of t will be required to reject the null hypothesis compared to the value of z required for rejection.
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