Question: I got the following question wrong on my test, but the teacher didn't really explain why it was wrong or how I could improve my

I got the following question wrong on my test, but the teacher didn't really explain why it was wrong or how I could improve my answer in the future.

Tandy's Ice Cream shop serves chocolate, vanilla, and strawberry ice cream. Tandy wants to plan for the future years. She knows that on average she expects to purchase 100 cases of chocolate, 75 cases of vanilla, and 25 cases of strawberry (4:3:1). This year, the ice cream sales increased, and she purchased 133 cases of chocolate, 82 cases of vanilla, and 33 cases of strawberry. Given the following chi-square test results, was Tandy's distribution of proportions the same as expected? (My answer: "no, none of the proportions matched the expected values")

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