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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...
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...
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...
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...
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
A sample of size 31 will be drawn from a population with mean 39 and standard...
A sample of size 31 will be drawn from a population with mean 39 and standard deviation 9 (a) Is it appropriate to use the normal distribution to find probabilities for x? (b) If appropriate find the probability that x will be between 40 and 41 Round the answer to at least four decimal places. (c) If appropriate find the 33rd percentile of x . Round the answer to at least two decimal places
Question 10 If random samples of size 45 are drawn from a population with mean 250...
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...
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....
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.)
Question 4 (0.5 points) Consider the following hypotheses: Ho: mean 5 H: mean 5 A test is performed with a sample o...
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...
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 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.)
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. (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...
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