Answer:
The null and alternative hypothesis for this test are
Step-by-step explanation:
If we perform a hypothesis test, we can reject or not reject the null hypothesis.
To conclude that the tires have a decreased stopping distance (μ<215), we should state the null hypothesis 
and then go on with the analysis to reject it (or not).
If the null hypothesis is rejected, the claim of the manufacturer is rigth.
The alternative hypothesis would be 
, that would turn rigth if the null hypothesis is rejected.
Answer:
48
Step-by-step explanation:
0.8 times 60= 48
If you paid $14 for 600, you paid:
600 * 14 = $8,400.00
If you sold them for $15.30 a share, you made:
600 * 15.30 = $9,180
9,180 - 8,400 = $780
The return on the investment being $780
Very very safe investment and not worth it.
Answer:
Sorry I need Points but I also need help
Step-by-step explanation:
