Answer to Question #321484 in Statistics and Probability for vani

Question

A. Directions: Check whether the sample is in each problem is sufficiently large enough to use the

Central Limit Theorem in normal approximation.

4. Professors from an organization for private colleges and universities reported that more than 6% of

professors attended a national convention in the past year. To test this claim, a researcher surveyed 80

professors and found that 5 attended a national convention in the past year.

5. An insurance industry report indicated that 30% of those persons involved in minor traffic accidents

this year have been involved in at least one traffic accident in the last five years. Believing it was too

large, an advisory group decided to investigate this claim. A sample of 200 traffic accidents this year

showed that 56 persons were also involved in another accident in the last five years. 6. A researcher

claims that 75% of college students would rather spend

Answer 1

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