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An urn contains 8 black and 9 green balls. Five balls are randomly drawn from the urn in succession, with replacement.That is, after each draw, the selected ball is returned to the urn. What is the probability that all 5 balls drawn from the urn are black?
Round your answer to three decimal places. Please show work.
1.a researcher wishes to compare the effect of the rate of stepping on heart rate in a step-aerobics workout. a
Formulate and test an appropriate set of hypotheses to determine if the machine can be qualified. Use a = 0.05. Find the P-value.
About 40% of the general population donate time and energy to community projects. Suppose 15 people have been randomly selected from a community and each asked whether he or she donates time and energy to community projects.
Suppose you roll a standard die 2000 times and let X be the sum of the values you get. Using the Central Limit Theorem, for what value of a is P[X >= a] approximately equal to P[N(0,1) >= 2] ?
1. For any set F and point x in a metric space recall that d(x, F ) := inf{d(x, y): y ∈ F }. Let F be a closed set in a normed linear space S with the usual distance d(x, y) := x - y . Show that d(·, F ) isa convex funct..
1.a poll finds that 54 of the 600 people polled favor the incumbent. shortly after the poll is taken it is disclosed
Burnwood Tech plans to issue some $60 par preferred stock with a 6% dividend. A similar stock is selling on the market for $70. Burnwood must pay flotation costs of 5% of the issue price.
Construct a 90 percent confidence interval for the true mean weight. (b) What sample size would be necessary to estimate the true weight with an error of 0.02 grams with 90 percent confidence?
the rent for a one-bedroom apartment in southern california follows the normal distribution with a mean of 2075 per
For a continuous random variable x, the probability density function f(x) represents the probability at a given value of x. the area under the curve at x.
the wind mountain archaeological site is located in soutwestern new mexico. wind mountain was home to a culture of
A psychologist studied self-esteem scores and found the data set to be normally distributed with a mean of 50 and a standard deviation of 6. A raw score of 47 is associated with what percentile?
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