To save money, a local charity organization wants to target its mailing requests

Question

To save money, a local charity organization wants to target its mailing requests for donations to individuals who are most supportive of its cause. They ask a sample of 5 men and 5 women to rate the importance of their cause on a scale from 1 (not important at all) to 7 (very important). The ratings for men were M1 = 6.1. The ratings for women were M2 = 5.2. If the estimated standard error for the difference (sM1 M2) is equal to 0.25, then consider the following.

(a) Find the confidence limits at an 80% CI for these two-independent samples. (Round your answers to two decimal places.)

(b) Can we conclude that men or women are more supportive to their cause? Explain.

*please explain how the t value for 80% CI is found

Explanation / Answer

To save money, a local charity organization wants to target its mailing requests for donations to individuals who are most supportive of its cause. They ask a sample of 5 men and 5 women to rate the importance of their cause on a scale from 1 (not important at all) to 7 (very important). The ratings for men were M1 = 6.1. The ratings for women were M2 = 5.2. If the estimated standard error for the difference (sM1 M2) is equal to 0.25, then consider the following.

(a) Find the confidence limits at an 80% CI for these two-independent samples. (Round your answers to two decimal places.)

(b) Can we conclude that men or women are more supportive to their cause? Explain.

*please explain how the t value for 80% CI is found

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