Gary’s Gumbo is a locally owned restaurant in Houston, Texas, with eight locations. The owner recently developed a new recipe for the restaurant’s signature gumbo dish. The owner decided to try out the dish in four of the company’s locations. After one month, the owner had gathered the following data: Locations with New Gumbo Recipe Locations with Old Gumbo Recipe Location # 1 2 3 4 5 6 7 8 Number of orders 1,253 1,386 1,495 1,377 1,112 1,025 1,224 997 Number of customer complaints (about the dish) 34 36 44 32 12 9 6 8 After looking over the data, the owner happily noted that the number of orders of the signature gumbo dish at the locations where the new recipe had been used (locations 1–4) had increased in comparison to the traditional number of orders of the dish (locations 5–8). The owner then decided to implement the new recipe at the rest of the company’s locations. a. Identify whether the decision of introducing the new gumbo recipe in all locations is correct. a. The number of orders increased in the locations after introducing the new gumbo recipe. So the decision of the company is correct. b. The number of orders increased along with complaints so the decision of the company should be reconsidered. c. The number of orders increased but the decision of introducing the new recipe to all locations should be reconsidered. d. None of the above b. Identify the cognitive bias in this situation. a. The owner of the company correctly identified the results based on the feedback. b. The owner of the company accepted only the positive feedback. c. The owner of the company accepted the negative feedbacks d. The owner of the company accepted the positive feedback and ignored the negative feedback.
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
Gary’s Gumbo is a locally owned restaurant in Houston, Texas, with eight locations. The owner recently developed a new recipe for the restaurant’s signature gumbo dish. The owner decided to try out the dish in four of the company’s locations. After one month, the owner had gathered the following data:
| Locations | with New | Gumbo | Recipe | Locations | with Old | Gumbo | Recipe | ||
| Location # | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| Number of orders | 1,253 | 1,386 | 1,495 | 1,377 | 1,112 | 1,025 | 1,224 | 997 | |
| Number of customer complaints (about the dish) | 34 | 36 | 44 | 32 | 12 | 9 | 6 | 8 |
After looking over the data, the owner happily noted that the number of orders of the signature gumbo dish at the locations where the new recipe had been used (locations 1–4) had increased in comparison to the traditional number of orders of the dish (locations 5–8). The owner then decided to implement the new recipe at the rest of the company’s locations.
a. Identify whether the decision of introducing the new gumbo recipe in all locations is correct.
a. The number of orders increased in the locations after introducing the new gumbo recipe. So the decision of the company is correct.
b. The number of orders increased along with complaints so the decision of the company should be reconsidered.
c. The number of orders increased but the decision of introducing the new recipe to all locations should be reconsidered.
d. None of the above
b. Identify the cognitive bias in this situation.
a. The owner of the company correctly identified the results based on the feedback.
b. The owner of the company accepted only the positive feedback.
c. The owner of the company accepted the negative feedbacks
d. The owner of the company accepted the positive feedback and ignored the negative feedback.
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