Exercise 12.7B Using the means and standard deviations you calculated in the air quality data from exercise 12.5, answer

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Exercise 12.7B Using the means and standard deviations youcalculated in the air quality data from exercise 12.5, answer thefollowing: What is the dfconserv? What is the t7,0.975? Use threeplaces after the decimal. What is the 95% confidence interval? Usetwo places after the decimal. to Question 101 pts Exercise 12.5 Astudy of environmental air quality measured suspended particulatematter in air samples at two sites. Table 12.9 list the data. Whatis the standard deviation for Site 2? Use two places after thedecimal.You may use SPSS to determine this calculation by using thedata set which can be found here: airsamples.sav Downloadairsamples.sav Site 1 68 22 36 32 42 24 28 38 Site 2 36 38 3
9 40 36 34 33 32 2.88 Flag question: Question 11 Question 112pts Exercise 12.7A Using the means and standard deviations youcalculated in the air quality data from exercise 12.5,
calculate the standard error of the mean difference withoutassuming equal variance. Use three places after the decimal. 5.247Flag question: Question 12 Question 124 pts Exercise 12.7B Usingthe means and standard deviations you calculated in the air qualitydata from exercise 12.5, answer the following: What is thedfconserv? What is the t7,0.975? Use three places after thedecimal. What is the 95% confidence interval? Use two places afterthe decimal. to Flag question: Question 13 Question 132 ptsExercise 12.7C Using the means and standard deviations youcalculated in the air quality data from exercise 12.5, conduct ahypothesis to determine the two-sided P-value. Is there asignificant difference between the means? Group of answer choicesYes, there is a significant difference between the means. No, thereis not a significant difference between the means.