Question: An entomologist writes an article in a scientific journal which claims that fewer than 19% of male fireflies are unable to produce light due to a genetic mutation.

1. Write the null and alternative hypotheses for this experiment.
2. Identify the Type I error in this context.

1. The error of rejecting the claim that the true proportion is at least 19% when it really is at least 19%.
2. The error of rejecting the claim that the true proportion is less than 19% when it really is less than 19%.
3. The error of failing to reject the claim that the true proportion is at least 19% when it is actually less than 19%.
4. The error of failing to accept the claim that the true proportion is at least 19% when it is actually less than 19%.
5. The error of accepting the claim that the true proportion is at least 19% when it really is at least 19%.

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