Given a population with a normal distribution, a mean of150, and a standard deviation of 12, find the probability of a value between 147 and 160.
Given a population with a normal distribution, a mean of150, and a standard deviation of 12,...
Given a normal population which has a mean of 70 and a standard deviation of 14, find the probability that a random sample of 49 has a mean between 68 and 71. Report your answer to four decimal places.
A distribution of values is normal with a mean of 59.6 and a standard deviation of 91.1. Find the probability that a randomly selected value is between -95.3 and 232.7. P(-95.3 < X < 232.7) =
population values has normal distribution with mean of 212.5 and standard deviation of 4.8. we get random sample of 40. a) find probability that a single value is greater than 200.3 b) find probability that a sample size n=40 randomly selected is greater than 200.3 sorry SD 4.8
A population of values has a normal distribution with mean=155.9 and standard deviation=42.1. You intend to draw a random sample of size=12. Find the probability that a single randomly selected value is less than 172.9. P(X<172.9). Find the probability that a sample of size=12 is randomly selected with a mean less than 172.9. P(M<172.9). Enter your answers as numbers accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
Consider a normal distribution with mean 25 and standard deviation 5. What is the probability a value selected at random from this distribution is greater than 25? (Round your answer to two decimal places.) Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.) μ = 14.9; σ = 3.5 P(10 ≤ x ≤ 26) = Need Help? Read It Assume that x has a...
Given a normal population whose mean is 445 and whose standard deviation is 26, find each of the following: A. The probability that a random sample of 3 has a mean between 449 and 452. Probability = 0.025 B. The probability that a random sample of 17 has a mean between 449 and 452. Probability = C. The probability that a random sample of 27 has a mean between 449 and 452. Probability =
1. Given a normal population which has a mean of 140 and a standard deviation of 21, find the probability that a random sample of 100 has a mean between 138 and 145. 2. If all possible samples of size n are drawn from an infinite population with standard deviation 8, then the standard error of the sample mean equals 1.0 if the sample size is 64. a. true b. false 3. You have completed an hypothesis test and determine...
Given a standardized normal distribution (with a mean of O and a standard deviation of 1), complete parts (a) through (d) below. Click here to view page 1 of the cumulative standardized normal distribution table Click here to view page 2 of the cumulative standardized normal distribution table. a. What is the probability that Z is between - 1.54 and 1.88? The probability that Z is between - 1.54 and 1.88 is .9061. (Round to four decimal places as needed.)
Given a standardized normal distribution (with a mean of 0 and a standard deviation of 1) complete parts (a) through (d) below. Click here to view page 1 of the cumulative standardized normal distribution table, Click here to view page 2 of the cumulative standardized normal distribution table. a. What is the probability that Z is between 1.57 and 1.83? - The probability that Z is between 1.57 and 1.83 is (Round to four decimal places as needed.) particular train...
Given a normal population whose mean is 440 and whose standard deviation is 26, find each of the following (use Excel to obtain more accuracy): A. The probability that a random sample of 4 has a mean between 442 and 450. Probability = B. The probability that a random sample of 16 has a mean between 442 and 450. Probability = C. The probability that a random sample of 29 has a mean between 442 and 450. Probability =