1. A surveyof 250 lobster fisherman found that they catch an average of 32 pounds of lobster per day with a standard dev of four pounds. If a random sampleof 30 lobster fishermen is selected, what is the probabilitythat their average catch is less than 31.5 pounds?
2. The standard deviationof a distribution is 20. If a sample of 225 is selected, what is the standard errorof the mean?
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1. A survey of 250 lobster fisherman found that they catch an average of 32 pounds of lobster per day with a …
The solution shows how to use the normal distribution to calculate averages and standard errors for lobster fisherman.