Frank an active 11 year old male, consume 660 calories during breakfast. This is 30 percent of the recommended number of calorie
1 answer:
Answer:
the recommended number of caories for a 11 year old male = 220.
Step-by-step explanation:
it is given that frank consumes 660 calories during breakfast.
660 calories is the 30 percent of recommended calories for a day.
let the number of calories required for a day be x.
therefore 30 percent of x = 660
therefore ×x = 660
30x= 660×100
x=660×
x= ×660
x= 2200
solving the equation we get x= 2200
there the recommended number of caories for a 11 year old male = 220.
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We have the following data:
Margin of Error = E = 2.7 % = 0.027
Sample size = n = 900
Proportion of adults in favor = p = 60% = 0.6
We need to find the confidence level. For this first we need to find the z value.
The margin of error for a population proportion is given as:
Using the values, we get:
As, seen from the z table, z=1.65 corresponds to the confidence level 90%. So, the answer to this question is option B
Margin of Error = E = 2.7 % = 0.027
Sample size = n = 900
Proportion of adults in favor = p = 60% = 0.6
We need to find the confidence level. For this first we need to find the z value.
The margin of error for a population proportion is given as:
Using the values, we get:
As, seen from the z table, z=1.65 corresponds to the confidence level 90%. So, the answer to this question is option B