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TWO INDEPENDENT SAMPLES CHECKPOINT

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A coffee company wants to bring out a new holiday flavor and decides to conduct a study to see what their customers prefer. In which situation could they use the two-sample t-test for comparing two population means?

A. They randomly give consumers a sample of either peppermint patty iced latte or dark chocolate and ginger crystal iced latte. Then they measure to see how many drinks people buy of the sampled flavor.

B. They randomly give consumers a sample of both flavors: first peppermint patty iced latte and then dark chocolate and ginger crystal iced latte. After each drink, they use an interview to measure happiness with the coffee brand overall. They compare the results to see if the participants feel more or less happy about the brand after trying the second flavor.

C. They show consumers both options: first peppermint patty iced latte and then dark chocolate and ginger crystal iced latte. They let consumers decide which one they like better and then select the drink that most customers prefer.



Answer :

GinnyAnswer

Final answer:

The two-sample t-test compares two population means of independent groups in statistical analysis.


Explanation:

The two-sample t-test for comparing two population means is used when:

  • Two independent groups are being compared
  • Statistical evidence is sought to determine whether the associated population means are significantly different

This test is commonly used in scenarios where researchers want to compare the means of two separate groups to draw conclusions about their differences.


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