Answer:
2.56
Step-by-step explanation:
Monday: 2 * 2.21 = 4.42
Tuesday: 4.42 + 0.39 = 4.81
Wednesday: 4.81 - 1.76 = 3.05
Thursday: 3.05 - 1/5 * 3.05 = 3.05 - 0.61 = 2.44
Friday: 2.44 + 0.12 = 2.56
Answer:
Soup B has more sodium per cup.
Step-by-step explanation:
If we're doing sodium per cup, then we have to divide 5 by 12, and 8 by 13.
5÷12=~0.4 grams
8÷13=~0.6 grams
0.6>0.4
So B has more sodium per cup.
The only thing we need to here to find who is correct is evaluate the function
at
. To do that we are going to replace
with
in the function:
We can conclude that Lynn is correct.
is indeed 14.
Answer:
A)n= 703.96
B)n= 602.308
Step by step Explanation:
Given that you want to be 99% confident that the sample percentage is within 3.1 percentage points of the true population percentage.
Then z/2 = 1.645
And M = 3.1% = 0.031
A)Nothing is known therefore,
p = q = 0.50
E=0.031
For 90% confidence, z = 1.645
n = (zα/₂)²(p)(1-p)/M²
n= 1.645²× 0.5 × 0.5/0.031²
n= 703.96
Therefore, 703.96randomly selected air passengers must be surveyed to be 99%
B)we know that recent surveys surgest that about 38% of all air passengers prefer an aisle seat, thus p = 35% = 0.35
n = (zα/₂)²(p)(1-p)/M²
n= (1.645²× 0.31 × 0.69)/0.031²
n= 602.308
Hence, 602.308 randomly selected air passengers must be surveyed to be 90% confident that the sample percentage is within 3.1 percentage points of the true population percentage.
