Answer:
What is the picture explaining?
Step-by-step explanation:
Like what is the quiestion and the choices you didnt explain.
Answer:
Step-by-step explanation:
Let X be the length of time between billing dates and checks received and deposited for non-delinquent accounts of an oil company’s monthly credit card customers
X has mean 13.5 and sigma 3 days
Sample size = n =36, x bar = 13
(One tailed test at 0.025 sign. level)
Mean diff = -0.5
Since sigma is known z test can be used
Std error =
Z statistic = -0.5/SE= -0.1
p value = 0.920
p>0.025 hence accept null hypothesis.
My conclusion is there is no statistical evidence that lock box reduced the mean time.
Answer:
Yes
Step-by-step explanation:
Radius = 2÷2 = 1
Volume of sphere
= (4/3)×3.14×1³ = 314/75 in³
(4.18666767 in³)
Volume of cone
= ⅓×3.14×1²×5 = 157/30 in³
(5.2333333 in³)
Since the volume of cone is greater than the scoop, it will be able to hold melted icecream
Answer:
∠1=160° and ∠2=20°
Step-by-step explanation:
Let ∠1 = x
∠2 = y
as these two angles are supplementary their sum is 180
that x+y=180 ----(A)
Also given that ∠1 is 20 degree less than nine times the size of ∠2.
Hence
x=9y-20
putting value of x in A and solving for y
9y-20+y=180
10y=180+20
10y=200
y=10
Putting this y in A
x+10=180
x=160