Several types of ice cream are sold in a small local store. From a past study of customer selections, the owner knows th

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Several Types Of Ice Cream Are Sold In A Small Local Store From A Past Study Of Customer Selections The Owner Knows Th 1 (176.26 KiB) Viewed 32 times

Several types of ice cream are sold in a small local store. From a past study of customer selections, the owner knows that 25% of the customers ordered flavor A, 30%, flavor B, 18%, flavor C, 13%, flavor D, and the remainder, flavor E. Now the owner, who thinks that the customer preferences have changed, randomly samples 80 customers and finds that 16 prefer A, 16 prefer B, 28 prefer C, 7 prefer E and the remainder prefer D. Determine if the customers' preferences have changed from the last study. Use significance level α = 0.05. Click the icon to view page one of the table of critical values of chi-square distributions. Click the icon to view page two of the table of critical values of chi-square distributions. ... Ď. M: At least one of the proportions nave changed since the past study. HA: The proportions from the current sample conform to those from the past study. C. Ho: The proportions from the current sample conform to those from the next study. HA: : The proportions from the current sample conform to those from the past study. O D. Ho: The proportions from the current sample conform to those from the past study. HA: At least one of the proportions has changed since the past study. Calculate the test statistic. x² = (Round to two decimal places as needed.) Determine the critical value. xx-1,0x = 1,α State the conclusion for this test. Ho. The data statistically significant to conclude that, for this community, the customers' preferences have changed from the last study. (Round to three decimal places as needed.)