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:
762.5
Step-by-step explanation:
25% of 610 is 152.5 and 610 + 152.5 is 762.5
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The geometric mean of the numbers is 5.38
Given the values a, b, c and d
Geometric mean of the values will be expressed as:
GM = (abcd)^1/4
Given the values 4, 5, 6 and 7, the geometric mean will be expressed as:
GM = (4×5×6×7)^1/4
GM = (840)^1/4
GM = 5.38
Hence the geometric mean of the numbers is 5.38.
Learn more: brainly.com/question/23875011
Answer:
Step-by-step explanation:
sugar: half - 1/6 cup , double - 2/3 cup
mirin: half - 1/8 cup , double - 1/2 cup
shoyu: half - 6 Tbsp , double 1 1/2 cup
flour: half - 5/8 pound , double 2 1/2 pounds
chicken: half - 1 1/4 pounds , double: 5 pounds
Answer:
All positive rational numbers greater than 50
Step-by-step explanation:
Since the delivery cost is fixed per trip, the cost incurred can be represented by the equation
y(x)=8x+50 so in case Tess wants only 1 tone, the cost will be y(x)=8(1)+50=58
Therefore, it's proper to conclude that all numbers in the possible range are positive rational numbers greater than 50
