Answer is $5.25
35x.85=29.75
35.29.75= 5.25
It would be 90%..... 45/450= 10%.... so there would be 90% not being used.
Answer:
Null hypothesis: ∪ₐ = ∪ₓ
Alternative hypothesis: ∪ₐ ≠ ∪ₓ
Step-by-step explanation:
Null hypothesis: ∪ₐ = ∪ₓ
Alternative hypothesis: ∪ₐ ≠ ∪ₓ
where ∪ₐ represents mean of sample of new cars and ∪ₓ represents mean of sample of older cars.
Using a difference in means t test will help determine if new owners tune up their cars more frequently than older car owners.
Number 1s answer would be 2. and number 2s answer would be 2
0.070 is rounded to 2 significant figures
