Consider a population of 300 with a mean of 50 and a standard deviation equal to 29 What is the probability of obtaining a sample mean of 53 or less from a sample of 45?
What is the probability of obtaining a sample mean of 53 or less from a sample of 45?
P(`x≤53)=_
Consider a population of 300 with a mean of 50 and a standard deviation equal to...
Consider a population of 300 with a mean of 50 and a standard deviation equal to 22. What is the probability of obtaining a sample mean of 52 or less from a sample of 40?
Consider a population of 300 with a mean of 65 and a standard deviation equal to 25. What is the probability of obtaining a sample mean of 67 or less from a sample of 40?
Consider a population of 200 with a mean of 60 and a standard deviation equal to 24. What is the probability of obtaining a sample mean of 63 or less from a sample of 40? What is the probability of obtaining a sample mean of 63 or less from a sample of 40? P(x≤63)= (Round to four decimal places as needed.)
Consider a population of 250 with a mean of 55 and a standard deviation equal to 24. What is the probability of obtaining a sample mean of 56 or less with a sample size of 35?
A random sample of nequals 36 observations is drawn from a population with a mean equal to 53 and a standard deviation equal to 24 . a. Find the probability that x overbaris less than 45 . b. Find the probability that x overbaris greater than 63. c. Find the probability that x overbar falls between 45 and 61. .
A population has a mean of 300 and a standard deviation of 70. Suppose a sample of size 125 is selected and (x-bar) is used to estimate (mu) . Use z-table. A. What is the probability that the sample mean will be within +/- 8 of the population mean (to 4 decimals)? B. What is the probability that the sample mean will be within +/- 16 of the population mean (to 4 decimals)?
Questions 23-30: A normal population has a mean μ = 50 and a standard deviation σ = 8. That is, ?~?(50,8). Circle your final answer for each question below. 23. What is the z-score for an individual with a value of 38? 24. What is the probability that a randomly chosen individual from this population will be greater than 40? 25. What is the probability that a randomly chosen individual from this population will be between 44 and 60? 26....
a) If we assume the population mean is 98.60 and the standard deviation is 0.6, what is the probability of a single person having a temperature of 98.25 or less? (Round to four decimal places. This should be the theoretical probability that is calculated, NOT the empirical probability from the simulation.) b) If we assume the population mean is 98.60 and the standard deviation is 0.6, what is the probability of obtaining a sample mean of 98.25 or less from...
A normally distributed population has a mean of 475 and a standard deviation of 48. a. Determine the probability that a random sample of size 9 selected from this population will have a sample mean less than 451. b. Determine the probability that a random sample of size 16 selected from the population will have a sample mean greater than or equal to 498. a. P(X<451) = (Round to four decimal places as needed.) b. P(X2498) = 1 (Round to...
A random sample of n=49 observations is drawn from a population with a mean equal to 51 and a standard deviation equal to 14. c. Find the probability that x over bar x falls between 45 and 53. c. The probability that x over bar x falls between 45 and 53 is _____(Round to three decimal places as needed.) The answer.976 in not correct.