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A box contains 10 balls numbered 1,2,...,10. Two balls are selected at random without replacement.
a) Find the probability that the numbers on both balls are odd.b) Find the probability that the sum of numbers on the two selected balls is 3.
on average there is one flaw per 1000 feet of pipe. what is the probability that there is exactly one flaw in only
Eighteen (18) people in a department of 162 are fully trained in CPR and AED. A person shows signs of a heart attack. Five (5) people respond. What is the probability that NO (0) person who responded is trained to treat the victim? (Show all of yo..
Describe and perform the five-step hypothesis test process: set up the hypothesis, select a level of significance, establish the decision rule, calculate the test statistic, and draw conclusion.
an old saying in golf is you drive for show and you putt for dough. the point is that good putting is more important
what is the required sample size is the error is to be less than 1/2 hour with a 95% level of confidence?
As a part of the editorial a random sample of 260 households showed 170 own pets. Does this data disagree with the Pet Food Dealers Association data? Use a 0.05 level of significance.
To investigate the efficacy of a diet, a random sample of 16 male patients is drawn from a population of adult males using the diet. The weight of each individual in the sample is taken at the start of the diet and at a medical follow up 4 weeks l..
the study found 87 per cent of 1500 australians surveyed would support colour-coding on packaged food to indicate
A random sample of students is selected, and each one is asked to try first brand A and then brand B, or vice versa with the order determined at random.
Use each decision criterion (maximin, maximax, minimax regret, expected value) to determine the price that Pizza King should charge.
Determine the probability that at least 4 of the 155 golfers would get a hole in one on the sixth hole. Discuss
Statistical aptitude scores are known to be normally distributed, with mean = 50. A researcher has designed a new program intended to improve students statistical aptitude, and has enrolled a sample of 30 students in it.
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