Answer:
Step-by-step explanation:
The larger the sample size, the lower the standard deviation. The standard deviation shows how the data is spread from the mean. Therefore, benefit of increasing the sample size when trying to estimate the mean from a sample average are
a. A reduction in the bias of the estimate.
b. A reduction in the variability of the estimate.
The width of confidence interval is determined by the margin of error
Margin of error = z × s/√n
A smaller standard deviation and increased size would result to a narrower confidence interval. Therefore, increasing the sample size does not result to an increase in the width of the resulting confidence interval.
Answer:
12
Step-by-step explanation:
skeins of yarn purchased = 11
Feets per skein = 660 feets
Total number of feets purchased = (11 * 660) = 7260 feets
To make a scarf :
1 scarf = 200 yards
Recall :
1 yard = 3 feets
Hence,
1 scarf = (200 *3) = 600 feets
Number of scarf that can be made :
Total feets of yarn / Number of feets per scarf
= 7260 / 600
= 12.1
Hence, number of scarfLee can make for shelter is 12 (nearest whole number)
Answer:
A. A bar magnet’s magnetic field is larger than Earth’s.
Step-by-step explanation:
The average magnetic field strength in the Earth's outer core was measured to be 25 Gauss, 50 times stronger than the magnetic field at the surface.
The correct answer for the question that is being presented above is this one: "Nine seconds." A firecracker shoots up from a hill 150 feet high, with an initial speed of 110 feet per second. Using the formula H(t) = −16t2 + vt + s, approximately the firecracker will hit the ground in <span>Nine seconds </span>
Answer:
slope: -3/-4
Step-by-step explanation:
theres the answer
