Answer:
Does this sample provide convincing evidence that the machine is working properly?
Yes.
Step-by-step explanation:
<u>Normal distribution test:</u>
Where,
Once the significance level was not given, It is usually taken an assumption of a 5% significance level.
Taking the significance level of 5%, which means a confidence level of 95%, we have a z-value of
Therefore, we <u>fail to reject the null</u>. It means that the hypothesis test is not statistically significant: the average length is not different from 1.5!
Answer:
looks hard
Step-by-step explanation:
Add all the x and you get 14x. Full circle = 360 degrees. 14x=360. x=360/14 x=25.71 degrees
Answer:
perpendicular planes
Step-by-step explanation:
perpendicular planes
Answer:
substitute the value of x with ( a+2 )