Answer:
Step-by-step explanation:
Given that in a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time they spend using the Internet in a typical week (Ipsos Reid, August 9, 2005). The mean of the sample observations was 12.7 hours.
a) 
(right tailed test at 5% level)
test statistic Z = Mean diff/std error = 1.265
(Here z test is used because sigma is known)
p value = 0.103
Since p >0.05, we accept H0
b) Here s= 2 hours.
But sample size is very large so z test is used.
Std error = 
Test statistic = 3.16
p value =0.000783
since p <alpha, H0 is rejected
c) Because std deviation was less in part B, we got p value very low thus making us reject H0 in part B.
Answer:
The complete table is
d t
1 3
3 9
5 15
Step-by-step explanation:
Here is the correct and complete question:
The total number of hours, t, that Trent has practiced his guitar after d days is modeled by the equation t = 3d.
Complete the table below.
d t
1
3
15
Step-by-step explanation:
For the first space, we are to determine the value of t when d is 1
From the given equation, t = 3d, put d = 1 and determine t
t = 3d
∴ t = 3(1) = 3×1
t = 3
For the second space , we are to determine the value of t when d is 3
Put d = 3 in the equation to determine t
t = 3d
∴ t= 3(3) = 3×3
t = 9
For the third space, we are to determine the value of d when t is 15.
Put t = 15 in the equation and then find d
t = 3d
∴ 15 = 3d
Divide both sides by 3
15/3 = 3d/3
5 = d
∴ d = 5
Answer:
well for me
Step-by-step explanation:
I think it's 3/8
You might want to fix this question
Answer:
-1
Step-by-step explanation:
4x=-4
X = - 1
That's itt
