Question
In a certain school, 40% of students are afraid of dogs. A sample of 50 students is taken. (a) What is the standard error for
In a certain school, 40% of students are afraid of dogs. A sample of 50 students is taken.
(a) What is the standard error for the sample proportion?
(b) What is the probability that the sample proportion is more than 53%?
(c) What is the probability that the sample proportion is less than 46%?
(d) What is the probability that the sample proportion is between 35% and 45%?
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Elementary Statistics
Authors: Mario F. Triola
12th Edition
0321836960, 978-0321836960
