Answer:
132°
Step-by-step explanation:
180°-48°=132°
supplementary= 180°
16.92 dollars are 1692 pennies
4x + 25 + x - 15
5x + 10
/ 5 / 5
x = 2
Refer Back To The First Problem To Solve The Second One, You Are Doing Great!
Answer & Step-by-step explanation:
The confidence interval formula is:
I (1-alpha) (μ)= mean+- [(t(n-1))* S/sqrt(n)]
alpha= is the proportion of the distribution tails that are outside the confidence interval. In this case, 5%.
t(n-1)= t(34)= is the critical value of the t distribution with n-1 degrees of freedom for an area of alpha/2 (2.5%). In this case is 2.032
S= sample standard deviation because the problem does not specify that the standard deviation is from the population. In this case $17.32
mean= $63.57
n= number of observations =35
Then, the confidence interval (90%):
I 95%(μ)= 63.57+- [2.032*(17.32/sqrt(35))
I 95%(μ)= 63.57+- [5.95)
I 95%(μ)= [63.57-5.95; 63.57+5.95]
I 95%(μ)= [57.62; 69.52]
