Answer:
95% Confidence interval: (0.0415,0.0647)
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 1430
Number of people who responded that astrology was very scientific, x = 76

95% Confidence interval:


Putting the values, we get:

95% confidence interval for the population portion with this belief: (0.0415,0.0647)
180 books because there's 6 shelves with 30 books on each shelf. 6×30=180 I believe that is the answer we are looking for.
I think 33.3% that he Chooses that
Hola! Aquí mi respuesta;
17-3 x (-2^2)-(-6^2) x (-1^7)
17+3x4+6^2x(-1)
17+12-6^2
17+12-36
-7