Assume that the weights of salmon in the Columbia River are normally distributed. You randomly catch and weigh 20 salmon. The mean weight from your sample is x ̄ = 25.2 pounds with a standard deviation of s = 4.5 pounds. Test the claim that the mean weight of Columbia River salmon is greater than 23 pounds. Use a α = 0.10 significance level.
Question: What hypothesis test should you use for this problem?
1. Mean-1 Sample
2. Mean-2 Samples, Dependent
3. Mean-2 Samples, Independent
4. Proportion-1 Sample
5. Proportion-2 Samples
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