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You buy a carton of 12 eggs, but you drop the carton, breaking 3 eggs. You put them back inthe carton. Your roommate plans to make eggs and chooses 5 eggs randomly from the carton.
(a) How many ways are there to grab any 5 eggs out of the 12?
(b) How many ways are there to grab exactly 1 broken egg and 4 whole eggs?
(c) What is the probability of grabbing exactly 1 broken egg and 4 whole eggs?
Construct a 95% con?dence interval for the mean peak CK activity.
The number of times that Debbie proves me wrong each month follows a Poisson distribution with a mean of 2.5 times. What is the probability that "she who is never wrong" will fail to prove me wrong next month?
If a difference exists in the means, wage adjustments must be made to bring the lower wages up to the level of the higher ones. Given the sample data on hourly pay below, what adjustments are called for?
a time study is made of a tool crib and it is found that the probability of it taking more than t minutes to fill an
Construct a 99% confidence interval for the proportion of adults who are worried about having enough money for retirement.
The manufacturer of a laser printer reports the mean number of pages a cartridge will print before it needs replacing is 12,250. The distribution of pages printed per cartridge closely follows the normal probability distribution and the standard d..
a multiple choice test consists of 60 questions. each question has four possible answers and each question has one
Draw a decision tree of this situation. Draw an influence diagram of the situation. Before deciding, the decision maker considers listening to the weather forecast on the radio. Draw an influence diagram that takes into account the weather forecast.
Assume that the significance level is α=0.01. Use the given statement and find the P-value and critical value(s). The test statistic of z = -1.26 is obtained when testing the claim that p equals one fourth p=14. (Round to four decimal places as ne..
An experiment is conducted comparing the effectiveness of a new method of teaching algebra for eighth-grade students. Twelve gifted and 12 regular students are taught using this method. Their scores on a ?nal exam are shown in the following table.
Probability that the entire batch will be rejected?
compute a 95 confidence interval for the population mean based on the sample 1 2 3 4 5 6 and 39. change the number from
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