Q3. A research organization tested microwave ovens. At a = 0.10, is there a significant difference in the average prices of the three types of oven? Watts 1000 900 800 270 240 180 245 135 155 190 160 200 215 230 120 250 250 140 230 200 180 220 200 140 235 210 130 a) Complete the following ANOVA table: Source d.f Sum of squares Mean squares F-value Between Groups 21729.735 Within Groups 1073.794 Total b) State the Hypothesis and identify the claim. c) Draw the conclusions if the critical value is 2.61.

(Use SPSS) A random sample of nine male race horses at a Fauquier County stable yielded the following data on age of horse (months) and time to run a mile (seconds). Age of Horse (x) 22 27 62 47 38 ☐32 55 50 58 Time to Run a Mile (y) 96 102 158 125 113 107 142 139 141 a. Construct a scatterplot of the data. What does it suggest about the relationship between the age and speed of male race horses in Fauquier County? b. Assuming that the simple linear regression model is appropriate, obtain the equation of the estimated regression line. c. What percentage of the observed variation in Time to Run a Mile can be explained by the resulting model? d. Check the regression assumptions using a normal probability plot of the residuals and a plot of the explanatory variable values versus the studentized residuals. e. A race horse trainer in Fauquier County claimed that there is a useful linear relationship between the two variables. Do you agree? Carry out a formal hypothesis test to support your…

To test whether the mean time needed to mix a batch of material is the same for machines produced by three manufacturers, a chemical company obtained the following data on the time (in minutes) needed to mix the material. Manufacturer 1 2 3 19 29 21 26 26 19 24 32 24 27 25 16 (a) Use these data to test whether the population mean times for mixing a batch of material differ for the three manufacturers. Use  ? = 0.05. State the null and alternative hypotheses. H0: ?1 = ?2 = ?3Ha: ?1 ≠ ?2 ≠ ?3H0: ?1 ≠ ?2 ≠ ?3Ha: ?1 = ?2 = ?3    H0: ?1 = ?2 = ?3Ha: Not all the population means are equal.H0: At least two of the population means are equal.Ha: At least two of the population means are different.H0: Not all the population means are equal.Ha: ?1 = ?2 = ?3 Find the value of the test statistic. (Round your answer to two decimal places.)   Find the p-value. (Round your answer to three decimal places.) p-value =  State your conclusion. Do not reject H0. There is sufficient…

12. The following data were obtained from an inde- pendent-measures research study comparing three treatment conditions. Use an ANOVA with a = 05 to determine whether there are any significant mean differences among the treatments. Treatment II 2 1. 6. 21 2. 4. 0. 2. 4. 2.