A population has mean ? = 24 and standard deviation ? = 6. Round the answers...
A population has mean u = 26 and standard deviation o = 5. Round the answers to two decimal places as needed. Part 1 of 3 (a) Find the Z-score for a population value of 7. The Z-score for a population value of 7 is Correct Answer: The Z-score for a population value of 7 is -3.8. (c) What number has a z-score of -0.9? has a z-score of -0.9.
A population has meanu - 15 and standard deviation - 4. Round the answers to two decimal places as needed. ole Part: 0/3 Part 1 of 3 (a) Find the 2-score for a population value of 3. The 2-score for a population value of 3 is II
A normal population has a mean of 18 and a standard deviation of 5. a. Compute the z value associated with 24. (Round your answer to 2 decimal places.) 2 1.20 b. What proportion of the population is between 18 and 24? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places.) Proportion c. What proportion of the population is less than 13? (Round z-score computation to 2 decimal places and your final answer to...
A normal population has a mean of 11.2 and a standard deviation of 3.4. Refer to the table in Appendix B.1. a. Compute the z-value associated with 14.3. (Round the final answer to 2 decimal places.) z = b. What proportion of the population is between 11.2 and 14.3? (Round z-score computation to 2 decimal places and the final answer to 4 decimal places.) Proportion c. What proportion of the population is less than 10.0? (Round z-score computation to 2...
A normal population has a mean of 18.3 and a standard deviation of 5. Refer to the table in Appendix B.1 a. Compute the z-value associated with 25.0. (Round the final answer to 2 decimal places.) z = b. What proportion of the population is between 18.3 and 25.0? (Round z-score computation to 2 decimal places and the final answer to 4 decimal places.) Proportion c. What proportion of the population is less than 18.0? (Round z-score computation to 2...
A normal population has a mean of 19 and a standard deviation of 5. a. Compute the z value associated with 22. (Round your answer to 2 decimal places.) Z 0.60| b. What proportion of the population is between 19 and 22? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places.) Proportion c. What proportion of the population is less than 14? (Round z-score computation to 2 decimal places and your final answer to...
A normal population has a mean of 64 and a standard deviation of 24. You select a random sample of 32. Use Appendix B.1 for the z-values. Compute the probability that the sample mean is: (Round the final answers to 4 decimal places.) a. Greater than 67. Probability b. Less than 60. Probability c. Between 60 and 67. Probability
A normal population has a mean of 21.0 and a standard deviation of 5.0. a.) Compute the z value associated with 24.0 c.) What proportion of the population is less than 18.0? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places.)
A normal population has mean = 9 and standard deviation -5. (a) What proportion of the population is less than 19? (b) What is the probability that a randomly chosen value will be greater than 4? Round the answers to four decimal places. Part 1 of 2 The proportion of the population less than 19 is Part 2 of 2 The probability that a randomly chosen value will be greater than 4 is : A normal population has mean =...
A population has a mean of 400 and a standard deviation of 90. Suppose a sample of size 100 is selected and x with bar on top is used to estimate mu. What is the probability that the sample mean will be within +/- 3 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.) What is the probability that the sample mean will be within +/- 14 of the population mean (to...