Answer:
<u>The standard error of the mean is 0.444</u>
Step-by-step explanation:
1. Let's review the information given to us for solving the question:
Size of the sample = 25
Mean amount of money spent per day = US$ 18.01
Standard deviation = US$ 2.22
2. For finding the standard error of the mean, we use the following formula:
Standard error = Standard deviation / √Size of the sample
Standard error = 2.22 / √25
Standard error = 2.22 / 5
<u>Standard error = 0.444</u>
3. Interpretation of the standard error:
The standard error is "the standard deviation of the population of values of a sample statistic in a repeated sampling or its estimate".
Thus, the potential for error in the reported result is not more than ± 0.444 (68% confidence) or no more than 1.96 times the standard error (0.444) = ± 0.87 (at 95% confidence).
function 1 :
y = 20x + 15......rate of change (slope) = 20, y int = 15
function 2 :
y = 10x + 25....rate of change (slope) = 10, y int = 25
function 1 has a greater rate of change then function 2
function 2 has a greater y int then function 1
Answer: The volume of the cylinder is 9,184.5 cubic millimeters.
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Volume of a cylinder (V) : π x radius ² x height
Replacing with the values given and solving for v (Volume)
V = 3.14 x 15² x 13
V = 9,184.5 mm3
In conclusion, the volume of the cylinder is 9,184.5 cubic millimeters.
Feel free to ask for more if needed or if you did not understand something
Answer:
B
Step-by-step explanation:
the range is about 45