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2 answers:
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Answer:
9 grams
Step-by-step explanation:
<u>We can use these equations</u>:
y = ax
- Where y is the total amount of baking soda (in mg)
- Where a is the number of servings
- Where x is the amount of baking soda in one single serving (in mg)
Here we know that y = 1800 and a = 2, so we will need to solve for x
- Solving for x we get
and plugging in our known values we get
and this simplifies to 900
- This means one serving contains 900 mg of baking soda
We can now change the equation to solve for the total amount of baking soda required to serve 10 people
- We know that a = 10 and x = 900
- The equation is already solved for y, so plugging in our new values we have y = (10)(900) = 9000 mg
- The recipe will require 9000 mg in order to serve 10 people
Now there are 1000 mg in 1 g, so converting mg to g we have 9000 mg is equivalent to 9 grams
Answer:
The 80% confidence interval for the mean consumption of meat among people over age 23 is between 4 and 4.2 pounds.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the mean subtracted by M. So it is 4.1 - 0.07 = 4.03 pounds
The upper end of the interval is the mean added to M. So it is 4.1 + 0.07 = 4.17 pounds
Rounded to one decimal place
The 80% confidence interval for the mean consumption of meat among people over age 23 is between 4 and 4.2 pounds.