Find the first and third quartile for the data shown 4.5 4.9 7.2 9 9.9 11.2 13.3 17.6 17.9 25.6 Q1 = Q3 =

We have provided simple data sets for you to practice finding the descriptive measures discussed in this section. For each data set, a. obtain the quartiles. b. determine the interquartile range. c. find the five-number summary. 1, 2, 3, 4

Find the first and third quartile for the data shown 5.3 7.6 8.2 10.4 11.7 13 16 |27.4 | 28.3 29.6 Q13= Q3 =

2.4.50 (Similar to) Sample grade point averages for ten male students and ten female students are listed. Find the coefficient of variation for each of the two data sets. Then compare the results. Males 2.5 3.7 3.7 3.9 2.8 2.7 3.5 3.3 3.9 1.9 Females 2.6 3.8 2.1 3.8 3.7 4.1 1.9 3.8 3.6 2.3 %. (Round to one decimal place as needed.) The coefficient of variation for males is Enter your answer in the answer box and then click Check Answer. 2 parts remaining Clear Al 13 DELL

A truck is loaded with cartons of eggs that weigh an average of 1.8 pounds each with a standard deviation of 0.2 pound. A histogram of these weights appears mound-shaped and symmetric. What proportion of the cartons weigh less than 1.4 pounds? Select one: a. 5% b. 2.5% C. 95% d. 68%

Assume that the heights of women are normally distributed with a mean of 63 inches and a standard deviation of 1.4 inches. Find Qa, the third quartile that separates the bottom 75% from the top 25%. Click to view page 1 of the table. Click to view page 2 of the table. O A. 62.1 B. 63.9 O C. 64.6 O D. 64.8

IIT UU I Use the following cell phone airport data speeds (Mbps) from a particular network. Find the percentile corresponding to the data speed 1.4 Mbps. 0.1 0.2 0.2 0.4 0.4 0.4 0.4 0.5 0.5 0.5 O 0.6 0.6 0.7 0.8 0.9 0.9 1.1 1.4 1.4 1.6 1.6 2.1 2.1 2.3 2.3 2.5 2.6 2.7 2.9 3.3 3.8 4.6 4.8 5.9 6.1 6.3 6.9 8.6 9.1 11.2 11.4 11.5 13.3 14.1 14.4 14.5 14.9 15.2 15.4 29.9 Percentile of 1.4 = (Round to the nearest whole number as needed.)

The midterm exam grades of an engineering course were used to create the following stem and leaf plot. What is the third quartile of these scores? A. 52 | Stem-and-leaf of grades N = 40 Leaf Unit = 1.0 B. 73 C. 86 25 D. 93 4 5 26 6. 1359 7 00338 8 01122335789 9 00111233445677899

Find the 5 number summary for the data shown 5.4 7 9.2 13.8 19.9 21.9 23.3 26.1 5 number summary: Use the Locator/Percentile method described in your book, not your calculator. Submit Question E

Choose the appropriate statistical test. When computing, be sure to round each answer as indicated. A dentist wonders if depression affects ratings of tooth pain. In the general population, using a scale of 1-10 with higher values indicating more pain, the average pain rating for patients with toothaches is 6.8. A sample of 30 patients that show high levels of depression have an average pain rating of 7.1 (variance 0.8). What should the dentist determine? 1. Calculate the estimated standard error. (round to 3 decimals). [st.error] 2. What is thet-obtained? (round to 3 decimals). 3. What is the t-cv? (exact value) 4. What is your conclusion? Only type "Reject" or Retain"