Answer:
<h3>
x=60</h3>
Step-by-step explanation:
5=k×
k=180
3=180×
x=60
Answer:
Step-by-step explanation:
I had that question yesterday
Answer:
d. Twenty-five cars are randomly selected with the new transmission and 25 with the old transmission.
Step-by-step explanation:
A hypothesis test on the difference between the means must satisfy the following conditions
1) the samples must be randomly selected
2) each sample must have a known standard deviation
3) the samples must be independent
4) the samples must be from normal distribution
Hence only part d gives the right answer.