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A company wants to determine the effectiveness of its Spanish language learning app. The company studied a large random sample of first-year Spanish majors and found that, on average, students who used the app received higher grades in their Spanish classes than students who did not use the app. Based on the design and results of the study, which of the following is an appropriate conclusion?
Choose 1 answer:
(A) Using the app will improve the grades of any college student.
(B) Using the app will improve the grades of any Spanish major.
(C) Using the app is likely to improve the grades of firstyear Spanish majors.
(D) There is an association between using the app and higher grades in Spanish classes for first-year Spanish majors, but the effect of using the app is unclear.

A company wants to determine the effectiveness of its Spanish language learning app. The company studied a large random sample of first-year Spanish majors and found that, on average, students who used the app received higher grades in their Spanish classes than students who did not use the app. Based on the design and results of the study, which of the following is an appropriate conclusion?\newlineChoose 11 answer:\newline(A) Using the app will improve the grades of any college student.\newline(B) Using the app will improve the grades of any Spanish major.\newline(C) Using the app is likely to improve the grades of firstyear Spanish majors.\newline(D) There is an association between using the app and higher grades in Spanish classes for first-year Spanish majors, but the effect of using the app is unclear.

Full solution

Q. A company wants to determine the effectiveness of its Spanish language learning app. The company studied a large random sample of first-year Spanish majors and found that, on average, students who used the app received higher grades in their Spanish classes than students who did not use the app. Based on the design and results of the study, which of the following is an appropriate conclusion?\newlineChoose 11 answer:\newline(A) Using the app will improve the grades of any college student.\newline(B) Using the app will improve the grades of any Spanish major.\newline(C) Using the app is likely to improve the grades of firstyear Spanish majors.\newline(D) There is an association between using the app and higher grades in Spanish classes for first-year Spanish majors, but the effect of using the app is unclear.
  1. Study Results: The study shows students using the app got better grades, but it's just for first-year Spanish majors, not all college students.
  2. Specific Focus: So, option (A)(A) is too broad; it's not just any college student, it's about Spanish majors.
  3. Applicability: Option (B) is also too broad; it says "any Spanish major," but the study was only about first-year students.
  4. Effectiveness: Option (C) seems right; it's specific to first-year Spanish majors, which is who the study was about.
  5. Effectiveness: Option (C) seems right; it's specific to first-year Spanish majors, which is who the study was about.Option (D) is kinda tricky; it says there's an association but doesn't confirm the app's effectiveness, which the study suggests.

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