The following data are believed to have come from a normal distribution. Use the goodness of...
ns Exercise 12.20 (Self-Test) Algorithmic Video The following data are believed to have come from a normal distribution. Use the goodness of fit test and α-,05 to testthis daim. Use Table 124. 17 23 22 23 19 23 18 21 19 13 11 20 18 19 21 20 18 14 23 23 22 42 29 27 26 30 27 33 23 28 Using six classes, calculate the value of the test statistic (to 2 decimals). 51.64 The p value is...
Use α = .01 and conduct a goodness of fit test to see whether the following sample appears to have been selected from a normal probability distribution. Use Table 12.4 55 86 94 58 55 95 55 52 69 95 90 65 87 50 56 55 57 98 58 79 92 62 59 88 65 Compute the value of the test statistic (to 2 decimals). The p value is less than.005 What is your conclusion? The data does not come...
Use α- 01 and conduct a goodness of fit test to see whether the following sample appears to have been selected from a normal pro abili distribution se Table 12.4 55 86 94 58 55 95 55 52 69 95 90 65 87 50 56 55 57 98 58 79 92 62 59 88 65 Compute the value of the test statistic (to 2 decimals). The p value is between.01 and.025 What is your conclusion? cannot reject assumption that the...
You may need to use the appropriate technology to answer this question. The following data are believed to have come from a normal distribution. 24 19 22 25 18 23 20 22 14 11 18 21 21 22 18 24 44 16 29 26 31 34 23 30 Use the goodness of fit test with six classes and a 0.05 to test this claim. State the null and alternative hypotheses Ho: The population has a normal probability distribution. H: The...
Video Test the following hypotheses by using the z goodness of fit test. H o: p A 0.2, p 8-04, and p c 0.4 Ha: The population proportions are not p A 0.2 , p B 0.4 , and p c 0.4 A sample of size 200 yielded 60 in category A, 120 in category B, and 20 in category C. Use α-.01 and test to see whether the proportions are as stated in Ho . Use Table 12.4. a....
pls help!! 4. A field recently fertilized with manure is believed to have caused excessive levels of nitrate in an adjacent pond. Twenty-five samples were collected and analyzed using a field test kit. Conduct both the Dixon Ratio, and the Grubb's test to determine if there are any outliers present in the accompanying data set? Nitrate (mg/L) 1 Nitrate (mg/L) 25 29 34 21 38 26 38 83 37 38 34 34 26 28 24 24 26 10 12 13...
The data from exercise 3 follow. xi 2 6 9 13 20 yi 7 18 9 26 23 The estimated regression equation is = 7.6 + .9x. What is the value of the standard error of the estimate (to 4 decimals)? What is the value of the t test statistic (to 2 decimals)? What is the p-value? Use Table 1 of Appendix B. Selectless than .01between .01 and .02between .02 and .05between .05 and .10between .10 and .20between .20 and...
Goodness of fit Test You have collected data on a variable, and you want to determine if a normal distribution is a reasonable model for these data. The following table shows how many of the values fall within certain ranges of z values for these data Category z score below -2 Count 48 67 146 248 125 score from -2 to less than -1.5 z score from -1.5 to less than -1 score from -1 to less than -0.5 z...
1. A researcher intends to use a Chi2 test for Goodness of Fit to determine whether there is any preference between 10 brands of cookies. What is the critical Chi2 value for a sample of n = 300 participants and p < .01? A. 20.48 B. 11.07 C. 16.92 D. 18.31 E. 21.67 2. A researcher conducted a study on a sample of n = 80 undergraduates to evaluate preferences among students for four different textbooks for the Introduction to...
pls help!! 4. A field recently fertilized with manure is believed to have caused excessive levels of nitrate in an adjacent pond. Twenty-five samples were collected and analyzed using a field test kit. Conduct both the Dixon Ratio, and the Grubb's test to determine if there are any outliers present in the accompanying data set? Nitrate (mg/L) 1 Nitrate (mg/L) 25 29 34 21 38 26 38 83 37 38 34 34 26 28 24 24 26 10 12 13...