# Question: sA random sample of size 81 is drawn from a

sA random sample of size 81 is drawn from a population with a standard deviation of 12.If only 18% of the time a sample mean greater than 300 is obtained, what is the mean of the population?

**View Solution:**## Answer to relevant Questions

Find the probability in each case.a. N = 1000, n = 60, µ = 75, and σ = 6; P (x̄ < 76.5)?b. N = 90, n = 36, µ = 108, and σ = 3.46; P (107 < x̄ < 107.7) ?c. N = 250, n = 100, µ = 35.6, and σ = 4.89; P (x̄ ≥ 36) ?d. ...A given population proportion is .25. For the given value of n, what is the probability of getting each of the following sample proportions? a. n = 110 and p̂ ≤ .21b. n = 33 and p̂ > .24c. n = 59 and .24 ≤ p̂ < .27d. ...The mean of a population is 76 and the standard deviation is 14. The shape of the population is unknown. Determine the probability of each of the following occurring from this population.a. A random sample of size 35 ...In an effort to cut costs and improve profits, many U.S. companies have been turning to outsourcing. In fact, according to purchasing magazine, 54% of companies surveyed outsourced some part of their manufacturing process in ...If a company employs 3500 people and if a random sample of 175 of these employees has been taken by systematic sampling, what is the value of k? The researcher would start the sample selection between what two values? Where ...Post your question