Answer:
B. The intervals are centered around the sample mean GPA.
D. 95% of the intervals will contain the population mean in the long run.
Step-by-step explanation:
Confidence interval:
Depends on two things: The sample mean and the margin of error.
Lower end: Sample mean - margin of error
Upper end: Sample mean + margin of error
This means that the intervals are centered around the sample mean.
x% level:
x% of the intervals will contain the population mean in the long run.
So the true statements are:
B. The intervals are centered around the sample mean GPA.
D. 95% of the intervals will contain the population mean in the long run.
5/n=(3/2)/(5/5+4/5)
5/n=(3/2)/(9/5)
5/n=(3/2)*(5/9)
5/n=15/18=5/6
5/n=5/6
30/n=5
5n=30
Therefore: n=6.
Answer:
It's not 5x + 100 = 180,
it's 5x = 180 because they are vertical angles.
x = 36
Answer:
28 pieces.
Step-by-step explanation:
1/8 of 40 is 5. Subtract that five (the five that they ate) from 40, leaving you with 35. It says the next day, Ben ate 1/5 of what was left. He ate 1/5 of 35 which is 7. He ate 7 pieces. Subtract this from 35 and you're left with 28 pieces of calzone.
The answer is b. Hope this helped
