I've attached the complete question.
Answer:
Only participant 1 is not cheating while the rest are cheating.
Because only participant 1 has a z-score that falls within the 95% confidence interval.
Step-by-step explanation:
We are given;
Mean; μ = 3.3
Standard deviation; s = 1
Participant 1: X = 4
Participant 2: X = 6
Participant 3: X = 7
Participant 4: X = 0
Z - score for participant 1:
z = (x - μ)/s
z = (4 - 3.3)/1
z = 0.7
Z-score for participant 2;
z = (6 - 3.3)/1
z = 2.7
Z-score for participant 3;
z = (7 - 3.3)/1
z = 3.7
Z-score for participant 4;
z = (0 - 3.3)/1
z = -3.3
Now from tables, the z-score value for confidence interval of 95% is between -1.96 and 1.96
Now, from all the participants z-score only participant 1 has a z-score that falls within the 95% confidence interval.
Thus, only participant 1 is not cheating while the rest are cheating.
Add all the times together:
10 + 25 + 15 = 50 minutes total.
For the ratio divide the time for weights by total time:
25/50 which reduces to 1/2
The ratio is 1/2
Answer:
d. 18
Step-by-step explanation:
g(x)=3x-3
3(7)-3
21-3
=18
Hey there! :)
Answer:
m = 4.25, or 17/4.
Step-by-step explanation:
Given the proportion:

Cross multiply:
8(m - 3) = 5 · 2
Distribute the 8:
8m - 8(3) = 10
8m - 24 = 10
Add 24 to both sides:
8m = 34
Divide both sides by 8:
8m/8 = 34/8
m = 4.25, or 17/4.
Answer:
8%
Step-by-step explanation:
You multiply 4 times .08 which =32, so 8% of 4.00 =32 cents.