Answer:
1.4000 ;
0.0807 ;
1.69 ;
Fail to reject the Null
Step-by-step explanation:
Given :
μ = 21 minutes
x = 22.4 minutes
Sample size, n = 36
Standard deviation, s = 6
H0: μ ≥ 21
H1: μ < 21
Test statistic : (x - μ) ÷ s/sqrt(n)
Test statistic : (22.4 - 21) ÷ 6/sqrt(36)
Test statistic : 1.4 ÷ 1
Test statistic = 1.4000
Pvalue : Using the Test statistic value at α = 0.05 ; One - tail test = 0.0807
The t critical value using a critical value calculator ; DF = (n - 1) = 36 - 1 = 35 ; α = 0.05 = 1.69
Decision region :
Reject H0 if
|Test statistic| > |critical value|
1.4 < 1.69
Hence, we fail to reject H0
There isn't enough evidence they delivery time has been reduced below previous mean
Answer:
$ 99.60
Step-by-step explanation:
Thinking process:
According to financial data, the inflation rate in 1995 was at 2.5 %.
In 2016, the inflation rate was at 2.1 %
The difference was: 2.1 - 2.5 = -0.4 %
The price in 2016 = Original price - Adjusted price
Adjusted price = 
The new price will be 
The new price will be $ 99.60
I believe the answer is x-5 y-15
Answer: 13
Step-by-step explanation: Pythagorean theorem,
a²+b²=c²
5²+12²=c²
25+144=c²
Square root of 169 is 13
Hope this helps you!!!
Answer:
5
Step-by-step explanation:
