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= 44.5 with SS = 5040. On the basis of this sample, can the psychologist conclude that depression for elderly people is significantly different from depression in the general population? Test at the .05 level of significance.

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4.        A fund raiser for a charitable organization has set a goal of averaging at least $25 per donation. To see if the goal is being met, a random sample of recent donations is selected. The data for this sample are as follows: 20, 50, 30, 25, 15, 20, 40, 50, 10, and 20. Use a one-tailed test with a = .05 to determine whether the donations are averaging significantly greater than $25.

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