Answer: 1.300228
Step-by-step explanation:
The t-score we use for the confidence interval is two-tailed , i.e. the t-score should be used to find a (
) is given by :-
, where n is the sample size.
Given : Level of confidence: 
Significance level : 
Sample size : n= 47
Then, degree of freedom : 
Now by using standard normal t-distribution table,
Hence, the t-score should be used to find a 80% confidence interval estimate for the population mean = 1.300228
Answer:
honestly im trying to figure it out right now will get back to you when i figure it out.
Step-by-step explanation:
Answer:
each lamp would cost $14
He would spend $126 on 9 lamps
Step-by-step explanation:
Answer:
Step-by-step explanation:
Equation of line in point slope form is given as:
Plugging the values of m and 
, we find:
This is the required equation of line.
Running = 2/3
Swimming = 5/6
5/6 - 2/3 = 5/6 - 4/6 = 1/6
Answer : She spent 1/6 hour longer swimming than running.
