Answer:
We have to find the 90% confidence interval for the mean
Given sample size
Sample mean
Population standard deviation
Here the confidence level is 90% then
And
The 90% confidence interval is
Here is the critical value at 0.05
From the tables
Now the 90% confidence interval is =
=
=(3840.44, 4133.56)
Hence the 90% confidence interval for the mean is (3840.44, 4133.56)
Five different problems in one post? That's a turn-off for some potential helpers. Suggest you post only ONE problem at a time.
In regard to the first problem: Your Principal (P) is $8000. The Interest Rate (i) is 19%. The elapsed time is 7 years. Using the formula for continuous compounding:
A = P e^(rt), where "e" is the very common base with value approx. 2.718.
Here, the amount due is A = $8000 * e^(0.19 * 7). Can you evaluate this?
9+18s-7s the common factor is 's' so :
s(18-7) + 9 and that is : 11s+9 The answer is B.
Answer:61 degrees
Step-by-step explanation:
Its congruent angles
Answer:
cahrge 15 for first hours and 6 for every additional hour
Step-by-step explanation:
you get more money because if you do one hour then you will still get $15 in a hour while if you do one hour in the other equation yolu will only get $5