Assume a population of 4, 5, and 9. Assume that samples of size n=2 are randomly selected with replacement from the population. Listed below are the nine different samples. Complete parts a through d below. 4,4 4,5 4,9 5,4 5,5 5,9 9,4 9,5 9,9 a. Find the value of the population standard deviation o. (Round to three decimal places as needed.) b. Find the standard deviation of each of the nine samples, then summarize the sampling distribution of the standard deviations in the format of a table representing the probability distribution of the distinct standard deviation values. Use ascending order of the sample standard deviations. Probability (Type integers or fractions.) c. Find the mean of the sampling distribution of the sample standard deviations. The mean of the sampling distribution of the sample standard deviations is

Please answer the question on the attachment.

Assume you have taken 125 samples of size 81 each from a population. The population variance is 64. What is the standard deviation of each (and every) sample mean? 0.5 0.89 9 8

a.Consider the data set. 2, 3, 5, 8, 9 Compute the population standard deviation. (Round your answer to two decimal places.)? =? b.Consider the data set. 2, 4, 5, 6, 7 Compute the sample standard deviation. (Round your answer to two decimal places.)s = ? c.Consider the data set. 2, 3, 5, 6, 7 Find the range.

Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find the bone density test scores that can be used as cutoff values separating the lowest 6% and highest 6%, indicating levels that are too low or too high, respectively. Sketch the region containing the lowest 6% and highest 6%. Choose the correct graph below. O A. Za Za E OB. The bone density scores are (Use a comma to separate answers as needed. Round to two decimal places as needed.) Za Za OD. Za Za ♫

Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. Find the probability that a randomly selected thermometer reads between −2.25 and −1.65 and draw a sketch of the region.   Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING...       Question content area bottom Part 1 Sketch the region. Choose the correct graph below.     A.             -1.65-2.25         A graph with a bell-shaped curve, divided into 3 regions by 2 lines from top to bottom, both on the left side. Moving from left to right, the region left of the first line is shaded. The z-axis below this line is labeled negative 2.25. The z-axis below the second line is labeled negative 1.65.   B.             -1.65-2.25         A graph with a bell-shaped curve, divided into 3 regions by 2 lines from top to bottom, both on the left side. The region between the 2 lines is shaded. Moving from…

A population has a mean p= 79 and a standard deviation o = 12. Find the mean and standard deviation of a sampling distribution of sample means with sample size n = 36. %3D H=(Simplify your answer.) %3D (Simplify your answer)

The estimated distribution (in millions) of the population by age in a certain country for the year 2015 is shown in the pie chart. Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. Use 70 as the midpoint for "65 years and over." ... The sample standard deviation is s = as needed.) Under 4 years: 23.3 5-14 years: 42.4 15-19 years: 19.2 20-24 years: 23.5 25-34 years: 43.5 35-44 years: 40.3 45-64 years: 81.8 65 years and over: 52.9 (Round to two decimal places

72-under 73 73-under 74 16 0.0056 2 0.0007 Fill in the blanks by standardizing the normally distributed variable. 2) The amount of time that customers wait in line during peak hours at one bank is normally distributed with a mean of 13 minutes and a standard deviation of 2 minutes. The 2) percentage of time that the waiting time lies between 11 and 13 minutes is equal to the area under the standard normal curve between and MULTIPLE CHOICE. Ch0oose the one alternative that best completes the statement or answers the question. Use a table of areas to obtain the shaded area under the standard normal curve. 3) 3) Interyaort atlon mn -1.88 1.88 z A) 0.9398 B) 0.0602 C) 0.0301 D) 0.9699 1

Assume that a randomly selected subject is given a bone density test. Bone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find P, the 11th percentile. This is the bone density score separating the bottom 11% from the top 89%. Which graph represents P ? Choose the correct graph below. O A. O B. OD. P11 P11 P11 P11 The bone density score corresponding to P1 is (Round to two decimal places as needed.) Click to select your answer(s). APR tv MacBook Air F9 F10 LLA 20 F3 F6 F8 F4 F5 F1 F2 & #3 7 8. %24