In 1970, 59% of college freshmen thought that capital punishment should be abolished; by 2005, the percentage had dropped to 35%
1 answer:
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Answer:
0.9689
Step-by-step explanation:
Given:
banks in Switzerland are private organizations, p = 51% = 0.51
Sample size, n = 544 banks
To find:
Probability (the sample proportion of private banks will be greater than 47%)
Now,
Mean of the sample, μ = np = 544 × 0.51 = 277.44
= 544 × 0.47 = 255.68
Standard deviation =
or
Standard deviation =
or
Standard deviation = 11.6595
Now,
=
=
=
=
Now, from standard z value table, we get
= 1 - 0.031021
= 0.9689