Answer:
The options given in the question are incorrect , the correct options are:
a. - 1.645 b. -2.066 c. -2.000 d. -1.960
The test statistic to see whether the proportion is below the requirement is c. -2.000.
Step-by-step explanation:
p= 24/64 = .375
π0= .50
zcalc= (0.375 - 0.50)/[(0.50)(1 - 0.50)/64]
= -2.000
Answer: 14 boys
Step-by-step explanation:
ratio 2:3
7 divided by 21 = 3, so 7 times 2 equals 14
Answer: At least 4/14 = 28.5%
Step-by-step explanation:
Select the location of a math book at the far end. The probability that the book next to it is a math book:
4 remaining math books, out of the 14 remaining books
In the middle, there are two potential spots adjacent to each book, so it could be higher - that’s why I say “at least” 4/14
Answer:
42
Step-by-step explanation: