A survey by the Harris Poll of 2250 Americans in 2013 indicated that 42% believe in ghosts,

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A survey by the Harris Poll of 2250 Americans in 2013 indicated that 42% believe in ghosts, 26% believe in witches, 29% believe in astrology, and 36% believe in creationism.

(a) Is it valid to compare the proportions using inferential methods for independent samples? Explain.

(b) Doyou have enough information to compare them using inferential methods for dependent samples? Explain.

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