The variable x equals x=7
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.
<span>0.14035087719, thats the excact anwser</span>
The number that fits it is 37
I hope this helps!
Answer:
$24 off, New price is $8
Step-by-step explanation:
Original price = $32
75 % = 3/4
32 * 3 / 4 = 24
$24 off, New price is $8