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Herr Foods, a producer of a variety of salty snacks, performs taste tests to compare how consumers re- act to its products. A product such as horseradish cheddar chips is considered a polarizing product because it has a very strong taste. Consumers tend to rate the product very high or very low, which re- sults in highly variable taste-test ratings for the roduct. A more standard product, such as regular rtilla chips, typically recelves more consistent rat s. The following table shows how seven custom- a rated each product on a scale of 1-10. The mean ad standard deviation for each type of chip are also nown in the table and can be found in the Excel file err.xlox. Horseradish Cheddar Chips Tortilla Chips 10 10 10 10 Mean B.0 8.0 Standard deviation 3.11 1.00 Even though both products have the same aver age (mean) rating, the horseradish cheddar chip s viewed more positively from a marketing perspective If it has a higher standard deviation. Using a - 0.05, determine if the horseradish cheddar chip has a higher variance than the tortilla chip. Interpret the p-value. QUESTION 11 apter 13, problem 13.25 determine if the horseradish cheddar chip has a higher variance than the tortilla chip, based on our test. at conclusion can be drawn? There is not enough evidence to conclude that the Horseradish Chedder Chip has a higher variability of customers' ratings than the Tortilla Chip. There is enough evidence to conclude that the Horseradish Chedder Chip has a higher variability of customers' ratings than the Tortilla Chip. There is enough evidence to conclude that the Horseradish Chedder Chip has a lower variability of customers' ratings than the Tortilla Chip. There is not enough evidence to conclude that the Horseradish Chedder Chip has a lower variability of customers' ratings than the Tortilla Chip. QUESTION 12 chapter 13, problem 13.25 o determine if the horseradish cheddar chip has a higher variance than the tortilla chip, using table in ppendix A, what is the right critical value? QUESTION 13 Chapter 13, problem 13.25 To determine if the horseradish cheddar chip has a higher variance than the tortilla chip, using Excel or other software. what is the p-value for this test? (Please keep 4 digits after the decimal point.) QUESTION 14 Chapter 13. problem 13.25 To determine if the horseradish cheddar chip has a higher variance than the tortilla chip, what is the right test statistic? (Please keep 2 digits after the decimal point.) QUESTION 15 Chapter 13, problem 13.25 To determine if the horseradish cheddar chip has a higher variance than the tortilla chip, what is the right test? F test O Chi-Square test O z test O t test
