Question 2 (5 points) Suppose that a sample of size 58 is drawn from a population...
Question 2 (5 points) Suppose that a sample of size 58 is drawn from a population with mean 55 and standard deviation 38 . Find the value of o,, the standard deviation of the distribution of sample means. Write only a number as your answer. Round to two decimal places (for example: 8.21). Your Answer Answer Question 3 (5 points) The weights of bowling balls are normally distributed with mean 11.5 pounds and standard deviation 2.7 pounds. A sample of...
Question 1 (4.2 points) Suppose that a sample of size 44 is drawn from a population with mean 87 and standard deviation 58 . Find the value of ơr, the standard deviation of the distribution of sample means. Write only a number as your answer. Round to two decimal places (for example: 8.21) Your Answer: Answer
Question 2 (5 points) Suppose that a sample of size 71 is drawn from a population with mean 59 and standard deviation 87 . Find the value of ơn the standard deviation of the distribution of sample means Write only a number as your answer. Round to two decimal places (for example: 8.21). Your Answer: Answer
Save Question 2 (5 points) Suppose that a sample of size 74 is drawn from a population with mean 41 and standard deviation 83 . Find the value of σ', the standard deviation of the distribution of sample means. Write only a number as your answer. Round to two decimal places (for example: 8.21) Your Answer: Answer Save Question 3 (5 points MacBook Air
Question 10 If random samples of size 45 are drawn from a population with mean 250 and standard deviation 100, find the standard error of the distribution of sample means. Round your answer to three decimal places, if necessary. standard error- Attempts: 0 of 4used Check Answer
drawn from a population with mean μ-52 and standard deviation σ= 4.3. Mou may find it useful to reference A random sample the z table.] a. Is the sampling distribution of the sample mean with n-13 and n# 39 normally distributed? ○Yes, both the sample means will have a normal distribution. O No, both the sample means will not have a normal distribution. O No, only the sample mean with n 13 will have a normal distribution. O No, only...
A simple random sample of size n=21 is drawn from a population that is normally distributed. The sample mean is found to be x = 58 and the sample standard deviation is found to be s = 17. Construct a 90% confidence interval about the population mean. The lower bound is The upper bound is (Round to two decimal places as needed.)
Suppose that a random sample of size 64 is to be selected from a population with mean 40 and standard deviation 5. (Use a table or technology.) (a) What are the mean and standard deviation of the x sampling distribution? Describe the shape of the x sampling distribution. The shape of sampling distribution is-Select- (b) What is the approximate probability that will be within 0.5 of the population mean? (Round your answer to four decimal places.) (c) What is the...
Question 4 (0.5 points) Consider the following hypotheses: Ho: mean 5 H: mean 5 A test is performed with a sample of size 25. The sample mean was 4.79 and the population standard deviation is 1.2. Assume that the population is approximately normal. Use the TI-84 PLUS calculator to compute the Pvalue. Round your answer to four decimal places (for example: 0.0138). Write only a number as your answer. Your Answer: Answer Question 5 (0.5 points) Consider the following hypotheses:...
Suppose that a random sample of size 64 is to be selected from a population with mean 40 and standard deviation 5. (a) What are the mean and standard deviation of the sampling distribution? (b) What is the approximate probability that will be within 0.3 of the population mean u? (Round your answer to four decimal places.) (c) What is the approximate probability that will differ from u by more than 0.7? (Round your answer to four decimal places.)