A sample of 135 is drawn from a population with a proportion equal to 0.55. Complete parts a) through c) below. Click here to view page 1 of the cumulative standardized normal distribution table. Click here to view page 2 of the cumulative standardized normal distribution table. a) Determine the probability of observing 70 or fewer successes. P(Observing 70 or fewer successes) = 0.2311 (Round to four decimal places as needed.) b) Determine the probability of observing 76 or fewer successes. P(Observing 76 or fewer successes) = (Round to four decimal places as needed.) c) Determine the probability of observing 66 or more successes.

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