Answer: 90% confidence interval would be (6.022,6.986).
Step-by-step explanation:
Since we have given that
Number of students = 361
Sample mean = 6.504
Sample standard deviation = 5.584
Standard error of the mean = 0.294
At 90% confidence level,
So, α = 0.01
So, z = 1.64
Margin of error is given by
So, Lower limit would be
Upper limit would be
So, 90% confidence interval would be (6.022,6.986).
To find the amount of sugar needed for 4/9 of a batch, just multiply the standard batch (2 3/7 cups) by 4/9, for a result of 1 5/63 cups of sugar.
To find the amount of flour needed for a triple batch, multiply the base amount of flour, or 4 1/5, by three, to get 12 3/5 cups of flour.
a/b=5/4
a=5k
b=4k
b/c=7/3
b=7x
c=3x
b=4k
b=7x
4k=7x =>
k=7y
x=4y
a/b/c=
=5*7*y/4*7*y/3*4*y=
=35y/28y/12y=
=35/28/12y=
=5/4/12y=
=1,25/12y=
=0.1041666666666667/ y
there may be a mistake in my answer
Answer: x = 4/5
<u>Step-by-step explanation:</u>
Answer:
c
Step-by-step explanation:
because it is 3x10 to the 5th power there woould be 5 zeros
