A market researcher wanted to evaluate the difference in credit charges for customers of Bracy’s. She randomly selected 100 customers and recorded their credit charges in December 2004 and January 2005. Is there evidence to show a difference in credit charges between the two months?Step 1:                              Step 2: α =Ho: H1:Step 3                               Step 4 Step 5                               Step 6 Difference: Dec. 2004 - Jan. 2005 Sample Diff: 280.74152 Std. Err: 99.50361 p-value: 0.0058

Fill in the missing values for this ANOVA summary table: Source of Variation SS df MS F Between 1313.964 2     Within       TOTAL 2795.964 15 Accordong to the given information, how many groups (or population means) are being compared using this ANOVA?  (Hint: Use the df values to compute it) what is the total number of data used for this ANOVA?  (Hint: Use the df values to compute it)

In a mass screening of 1,000 65-year-old men in 2002, 100 were found to have diabetes. During the following 10-year period another 200 contracted diabetes. What was the prevalence of diabetes in 2002? What was the prevalence in 2012? i a haveing a hard time understanding how to calculate there measures

To determine if their 0.33 centimeter bolts are properly adjusted, Harper Manufacturing has decided to use an x‾-Chart which uses the range to estimate the variability in the sample. Average value 0.370 Step 1 of 7:  What is the Center Line of the control chart? Round your answer to three decimal places.   Step 2 of 7:  What is the Upper Control Limit? Round your answer to three decimal places. Step 3 of 7:  What is the Lower Control Limit? Round your answer to three decimal places.     Step 4 of 7:  Use the following sample data, taken from the next time period, to determine if the process is "In Control" or "Out of Control".Observations: 0.38,0.31,0.36,0.31,0.36,0.370.38,0.31,0.36,0.31,0.36,0.37Sample Mean: 0.34830.3483       Step 5 of 7:  Use the following sample data, taken from the next time period, to determine if the process is "In Control" or "Out of Control".Observations:…