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Mathematics, 22.04.2020 03:00 remyboy1938

From 105 of its restaurants, Noodles & Company managers collected data on per-person sales and the percent of sales due to "potstickers" (a popular food item). Both numerical variables failed tests for normality, so they tried a chi-square test. Each variable was converted into ordinal categories (low, medium, high) using cutoff points that produced roughly equal group sizes. At α = .10, is per-person spending independent of percent of sales from potstickers? Potsticker % of Sales Per Person Spending Low Medium High Row Total Low 17 14 8 39 Medium 9 10 6 25 High 9 12 20 41 Col Total 35 36 34 105 1. Open Minitab. 2. Open the Excel file below. 3. Copy and paste the column headers and NINE pieces of data from Excel into Minitab. 4. DO NOT copy over the row or column totals from Excel into Minitab. 5. Be sure that you are pasting the variable names (Low Medium, High) into the very first row in Minitab (shaded grey row). -- not into row 1 (white row) Click here for the Excel Data File (a) The hypothesis for the given issue is H0: Percentage of Sales and Per-Person Spending are independent. Yes No (b) Calculate the chi-square test statistic, degrees of freedom, and the p-value. (Round your test statistic value to 2 decimal places and p-value to 4 decimal places. Leave no cells blank - be certain to enter "0" wherever required.) Test statistic d. f. p-value (c) We reject the null and find dependence. Yes No

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From 105 of its restaurants, Noodles & Company managers collected data on per-person sales and t...

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