A population has mean u = 26 and standard deviation o = 5. Round the answers...
A population has mean ? = 24 and standard deviation ? = 6. Round the answers to two decimal places as needed. Part 1 out of 3 Find the z-score for a population value of 4. The z-score for a population value of 4 is
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
and o A population has mean u =9 and standard deviation o = 3. Find for samples of size n 25. Round your answers to one decimal place if needed.
A normal population has mean u=61 and standard deviation o=17. (a) What proportion of the population is greater than 100? (b) What is the probability that a randomly chosen value will be less than 82? Round the answers to four decimal places. Part 1 of 2 The proportion of the population greater than 100 is Part 2 of 2 The probability that a randomly chosen value will be less than 82 is
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 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 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...
1A) A certain population has a mean of 531 and a standard deviation of 34. Many samples of size 46 are randomly selected and the means calculated. (a) What value would you expect to find for the mean of all these sample means? (Give your answer correct to nearest whole number.) (b) What value would you expect to find for the standard deviation of all these sample means? (Give your answer correct to two decimal places.) (c) What shape would...
A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test to perform the required hypothesis test at the 1% significance level. x = 27, n=31, o = 9, Ho: u = 33, Ha: u <33 The test statistic is z= - 3.71 . Round to two decimal places as needed.) dentify the critical value(s). Select the correct choice below and fill in the answer box within your choice. Round to two decimal places as...
A normal population has mean u = 9 and standard deviation = 5. (a) What proportion of the population is less than 20? (b) What is the probability that a randomly chosen value will be greater than 6? Round the answers to four decimal places. Part 1 of 2 The proportion of the population less than 20 is . Part 2 of 2 The probability that a randomly chosen value will be greater than 6 is .