Answer:
Kindly check explanation
Step-by-step explanation:
H0 : μ = 5500
H1 : μ > 5500
The test statistic assume normal distribution :
Test statistic :
(Xbar - μ) ÷ s/sqrt(n)
(5625.1 - 5500) ÷ 226.1/sqrt(15) = 2.1429 = 2.143
Pvalue from test statistic :
The Pvalue obtained using the calculator at df = 15 - 1 = 14 is 0.025083
α = 0.05
Since ;
Pvalue < α
0.025083 < 0.05 ; Reject H0
The confidence interval :
Xbar ± Tcritical * s/sqrt(n)
Tcritical at 95% = 1.761 ;
margin of error = 1.761 * 226.1/sqrt(15) = 102.805
Lower boundary : (5625.1 - 102.805) = 5522.295
(5522.295 ; ∞)
The hypothesized mean does not occur within the constructed confidence boundary. HENCE, there is significant eveidbce to support the claim that the true mean life of a biomedical device is greater than 5500
119 degrees
Alternate intro angles are congruent.
Answer:
Unrounded, it would be 19.625, and rounded it would be 19.63
Step-by-step explanation:
Following the formula pi r^2, I came up with this answer. Hope this helps!
Answer:
b < 5
Step-by-step explanation:
-2+b<3
Add 2 to each side
-2+2+b<3+2
b < 5
Answer:
Hello,
Step-by-step explanation:
a)
b)
c)
d) Since A has an inverse, A is inversible and <u>not singular.</u>
