Answer:
The 95% confidence interval for the mean score is:
∈ 
Step-by-step explanation:
We want to estimate the population mean, that is, the average score of all the subjects.
An estimator for the population mean μ is 
Since the sample size is 
then we use the statistic 
with 
degrees of freedom
The confidence interval for the mean is:
Where
is the average score of the sample
is the standard deviation of the sample
is the sample size
for a confidence level of 95% and 26 degrees of freedom
Then confidence interval is
∈
There are going to be 10 cupcakes left,hope I helped (:
The relationship here between the x and y values can be seen in an equation, y=x+3, since every y value is three more than its corresponding x-value. <span />
Answer:
56
Step-by-step explanation:
Answer:
for example.
Step-by-step explanation:
The three vertices of a parallelogram ABCD, taken in order are A(1,−2), B(3,6) and C(5,10). Find the coordinates of the fourth vertex D.
