Save Question 2 (5 points) Suppose that a sample of size 74 is drawn from a...
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
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 58 is drawn from a population with mean 39 and standard deviation 72. 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: 8.2 1). Your Answer: Answer
QUESTION 34 4 points Save Answer A sample of size 45 will be drawn from a population with mean 94 and standard deviation 14. Find the 32nd percentile of the sample mean . 98.48 94.67 87.42 93.02 QUESTION 35 4 points Save Answer Construct a 95% confidence interval for the unknown population proportion, based on the given values of x and n: x= 78, n= 142 and fill in the blanks. We are confident that the population mean is between...
According to one pollster, 41% of children are afraid of the dark. Suppose that a sample of size 25 is drawn. Find the value of , the standard deviation of the distribution of sample proportions. Write only a number as your answer. Round to two decimal places (for example: 8.21).
Question 41 2.381 points Save Answer Random samples of size 49 are taken from a population that has 200 elements, a mean of 100, and a variance of 196. The distribution of the population is unknown. The mean and the standard error of the distribution of sample means are 100 and 28 100 and 2 100 and 24.39 100 and 1.74
Fill in the blanks to correctly complete the sentence below. Suppose a simple random sample of size n is drawn from a large population with mean u and standard deviation o. The sampling distribution of x has mean u;= __ deviation = and standard Suppose a simple random sample of size n is drawn from a large population with mean u and standard deviation o. The sampling distribution of x has mean u; = | Vand standard deviation or
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
Question Completion Status: QUESTION TZ A sample of size 18 is drawn from a population with standard deviation 2.3. Calculate the standard error of the mean. Round your answer to 2 decimal points if needed. QUESTION 13 Suppose ACME corporation is trying to test if their new propane gas tank lasts longer than the 20 hours their previous model lasted. Which one of the following is a correctly stated hypothesis? A HT: 220 OB, Ho: 220 c. Ho: u >...