A class has 50 students. Use the second row of digits in the random number table below to select a simple random sample
Posted: Mon Jul 11, 2022 11:55 am
- A Class Has 50 Students Use The Second Row Of Digits In The Random Number Table Below To Select A Simple Random Sample 1 (54.61 KiB) Viewed 48 times
A company decides investigate the amount of sick leave taken by its employees. A sample of seven employees yields the following numbers of days 1 1 4 0 0 5 3 D Use this information to answer parts a through c. a. Find and interpret the range. The range is Choose the correct interpretation of the range below. O A. The number of days separating the fewest and most sick days taken is equal to the range. OB. The largest difference between the mean and any other value is equal to the range. OC. The range represents the average distance of an observation from the mean. O D. The range gives the most useful value for measuring the spread of the data. days. b. Find and interpret the standard deviation s. (Round to two decimal places as needed.) Choose the correct interpretation of the standard deviation below. S= OA. The standard deviation represents a typical distance of an observation from the mean. OB. The standard deviation represents the sum of the deviations from the mean. OC. Since the standard deviation uses the square of the units of measurement for the original data, it is not easy to interpret. OD. The standard deviation represents finding the deviation for each observation, squaring each deviation, and then adding them up. c. Suppose the 5 was incorrectly recorded and is supposed to be 50. Redo (a)-(b) with the correct data and describe the effect of this outlier. The new range is days. (Round to two decimal places as needed.) S= What is the effect of the outlier? O A. Both the range and standard deviation increase when an outlier is added. O B. Range increases and standard deviation decreases when an outlier is added. O C. Range decreases and standard deviation increases when an outlier is added. O D. Both the range and standard deviation decrease when an outlier is added. f sick leave taken in the past year.
An experiment was conducted in which two fair dice were thrown 100 times. The sum of the pips showing on the dice was then recorded. The frequency histogram to the right gives the results. Use the histogram to complete parts (a) through (f). (a) What was the most frequent outcome of the experiment? (b) What was the least frequent? (e) How many times did we observe & 7? (d) How many more 9's were observed than 1197 (e) Determine the percentage of time a 7 was observed. % (f) Describe the shape of the distribution. Choose the correct answer below. Skewed left Unform O O O Skewed right Sum Walth Q C