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A fair icosahedral die has faces numbered 1-20, each euqually likely to occur when the die is rolled. Round each answer to 4 places after the decimal point. a) If a fair icosahedral dice is rolled 13 times, what is the probability that ta least one of the numbers rolled is 4?
A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighed on very accurate scale. The results in grams were 3.087 3.131 3.241 3.241 3.270 3.353 3.400 3.411 3.437 3.477 (a)Construct a 90% confidence interval for the tr..
Given the hypothesis Ho: u=400, you conduct a sample of 12 observations and obtain a sample mean of 407 and a sample standard deviation of 6. Using a .01 significance level to test to see if you would reject Ho, what would be the value of your cri..
On a standardized performance test for athletes, how many random test results must be obtained in order to find the population mean score within 5 points?
For a population with µ = 62 and Ï? = 12, find the X-value that corresponds to each of the following z-scores.
Use the Standard Normal Table to find the probability. An airline knows from experience that the distribution of the number of suitcases that get lost
a textile manufacturing process finds that on average 3 flaws occur per every 180 yards of material produced.a. what is
an exam was given to a random sample of 360 new recruits. px is the probabiity of new recruits with a score of x. the
Determine the value of correlation coefficient between these 2 variables?
a 28yr old man pays 165.00 for a one year life insurance policy with coverage of 140000.00. if the probability that he
The probability that a bomber hits a target on a bombing mission is 0.700. Three bombers are sent to bomb a particular target.
If a 250. gram cart moving to the right with a velocity of +.31 m/s collides inelastically with a 500. gram cart traveling to the left with a velocity
Suppose you think this ad exaggerates the temperature upwards, and you look at a random sample of 30 Christmas days and find an average of 50º and standard deviation of 8º. Conduct the test and give the p-value.
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