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In a community, 40% of the population is smoker. I randomly choose 60 residents from that community and ask if each of them is a smoker.
Compute the standard deviation of sample proportion of smokers up to 3 decimal places.
Compute the mean of sample proportion of smokers
Compute the probability that the sample proportion of smokers is less than 50%. Find the answer closest to 3 decimal places.
Compute the probability that the sample proportion of smokers is greater than 50%. Find the answer closet to 3 decimal places.
Choose a number at random from the set of numbers from the set of numbers {1,2,3,4,5}. Now choose a number from the subset {1,...,X). Call this second number Y.
Approximately normally distributed with σ=10. Determine the probability that a randomly selected chocolate bar will have: 4.3 more than 155 calories.
the mean number of bacteria colonies of a certain type in samples of polluted water is 2 per cubic centimeter cm3.a if
What is the probability that the sample proportion will be within +/- .03 of the population proportion if a sample of size 1,200 is selected?
routine physical examinations are conducted annually as part of a health service program for the employees. it was
question in a city in italy 30 of the families have a mastercard 20 have an american express card and 25 have a visa
What size sample would be required to estimate the proportion of hospital referrals with a margin of error of 0.04 or less at 95% confidence?
the mean clotting time of blood is 7.35 seconds with a standard deviation of 0.35 seconds. what is the probability that
The width of a rectangular gate is 2 meters (m) larger than its height. The diagonal brace measures sqrt 6 m. Find the width and height.
The mean annual salaries paid to male and female employees of the company were EURO 32.000,- and 24.000,- respectively. Determine the percentage of males and females employed by the company.
two different sprays for rewaterproofing parkas are compared by treating 5 parkas with spray 1 and 6 with spray 2.
the supplies for the construction of a reinforced concrete building are supplied by the company a and b. the company a
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