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- Find the first quartile for following data 23,32,34,45,57,68The following sample observations were randomly selected: X Y 5 4 10 7 3 7 4 6 6 5 What is the coefficient of correlation? Select one: a. 0.185 b. 0.001 c. 0.034 d. 0.089Find the interquartile range for the following two data sets and compare them. Test Scores for Class A 69; 96; 82; 79; 65; 74; 83; 99; 89; 67; 90; 77; 85; 98; 66; 90; 77; 69; 80; 94 Test Scores for Class B 90; 72; 80; 92; 90; 97; 92; 75; 79; 68; 70; 82; 99; 94; 78; 73; 71; 68; 95; 100 The IQR for Class A is Number The IQR for Class B is Number Judging by their IQR, more variation is found in the test scores for Class Click for List
- Bottles for room spray are supposed to weigh exactly 16 oz. Inspectors want to develop process control charts. They take six boxes of five bottles each and weigh them. They obtain the following data. The mean weights of each of the 6 samples are 15.43, 14.47, 18.07, 17.34, 12.74, and 15.58 respectively. Likewise, the range values for the each of 6 samples are 1.63,0.66, 0.47,0.40, 0.20, and 0.90 respectively. Find out Grand Mean (X double bar), and mean range (R bar) O a. 16.538, 0.86 O b. 15.61,0.71 16.53,0.71 O d. 15.82, -0.65 O e. 0,0What percent of the data fall between the 1st and 2rd quartiles? 1. 0% 2. 25% 3. 50% 4. 75% 5. 100%A researcher has collected the following sample data. The mean of the sample is 5. 3 5 12 3 2 The 75th percentile is 5 8.5 9 10
- In the data set below, what is the upper quartile? 6 6 6 6 7 7 8 8 9 9 9 SubmitFor scenarios of statistical studies are given below. Decide which study uses a population parameter. And estimated 15% of Americans don't use the Internet. Lakeside family dentistry reported that six of the 15 patients who came in for regular cleaning one day had at least one cavity.Consider the dataset below. 44 72 74 78 102 Find the percentile rank of 44.