Answer:
Step-by-step explanation:
Given : sample size : n= 51
sample standard deviation : s= 0.46
Significance level :
Using chi-square distribution, the critical values will be :
Confidence interval for population standard deviation () :
Substitute all the values , we get
Hence, the 95% two-sided confidence interval for σ :
Answer:
Step-by-step explanation:
The formula for this equation is
a is the final result
p is the starting amount (deposited)
r is the interest rate
n is the number of times it's compounded
t is the time
because it says compound annually and it's after 2 years both t and n equal 2. I rounded a for you, but if you don't need it rounded here it is: 3863.345117
Please double check me I may be wrong, this is my second time doing these type of questions