Effectiveness of Training Programs

Very Hard Data Sufficiency Analyzing Information

A researcher is studying the effect of a new training program on employee productivity in a tech firm. The goal is to determine if the new training program increases productivity levels compared to the previous program.

Statement (1): In a sample of 50 employees trained under the new program, the average productivity score is 85 with a standard deviation of 10.

Statement (2): In another sample of 50 employees who underwent the previous training program, the average productivity score was 80 with a standard deviation of 15.

Can we conclude whether the new training program is more effective than the previous one?

Statement (1) alone is sufficient, but statement (2) alone is not sufficient.

Statement (2) alone is sufficient, but statement (1) alone is not sufficient.

Both statements (1) and (2) together are sufficient, but neither statement alone is sufficient.

Each statement alone is sufficient.

Statements (1) and (2) together are not sufficient.

Hint

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