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Answer: 0.9554
Step-by-step explanation:
Given : The proportion of the registered voters in a country are Republican = P=0.56
The number of voters = 447
The test statistic for proportion :-
For p= 0.60
Now, the probability that the sample proportion of Republicans will be less than 60% (by using the standard normal distribution table):-
Hence, the probability that the sample proportion of Republicans will be less than 60% = 0.9554