Answer:
A. 0.0049
B. Yes
Step-by-step explanation:
Sample proportion = 0.64
N = 1000
Population proportion = 0.60
We solve for standard deviation
= √p(1-p)/n
= √0.60(1-0.60)/1000
= √0.60x0.40/1000
= √0.00024
= 0.0155
A.
The probability of sample >=0.64
Z>=0.64-0.60/0.0155
Z >= 0.04/0.0155
So z >= 2.5806
Using excel this equal to 0.0049
0.0049 is probability of sample proportion being 0.64 at least.
B.
This answer in a shows that than 60% of households in the united states income class purchased life insurance last year.
Answer:
the temperature drops by 40
Step-by-step explanation:
Answer: The highest labor cost per hour that he can afford is $34
Step-by-step explanation:
Hi, to answer this question we simply have to solve the inequality:
4x + 260 < 400
4x < 400-260
4x < 140
x < 140/4
x < 35
Since x represents the labor cost per hour , The highest labor cost per hour that he can afford is $34 (using whole numbers, because x must be less than 35, not less or equal)
Feel free to ask for more if needed or if you did not understand something.
Linda will both water & feed her plants on the same day on the 21st day.
Y/6 - 2.1 + 11.7
= 1/6y+ - 2.1 + 11.7
Combine like terms!
= 1/6y + -2.1 + 11.7
= (1/6y) + (-2.1 + 11.7)
= 1/6y + 9.6
So, y/6 - 2.1 + 11.7 = 1/6y + 9.6! (:
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