Answer:
Multiply everything by 15 because when you divide 40 from 600 you get 15. We will only use the 2 numbers on the right of both samples. Then find the total of each row
<u>18 turns into 270| 10 truns into 150 </u>=420
<u>19 turns into 285| 7 turns into 105</u>=390
Headline A: Both samples show that over 300 students want to go after 8 am which makes the headline true.
Headline B: 8:30 is actually the most popular start time because both samples show greater amount of students choose 8:30 as the start time than any other time.
Headline C: This statement is not supported by the data, the data shows that 7:45 am is the second most popular selection.
Headline D: This statement is not supported by the data because both samples show that over 100 people chose 9:00.
I hope this is a good answer for you and I hope you have a nice day.
P.S. Please mark me braineast!
I'm thinking b
or c is what i think hope i could help ^-^
Answer:
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
given that a race car driver tested his car for time from 0 to 60 mph, and in 20 tests obtained an average of 4.85 seconds with a standard deviation of 1.47 seconds.
Sample size n = 20
since population standard deviation is not known, we can use t critical value for finding out the confidence interval
df=19
t critical = 2.045
Margin of error = 
conidence interval = Mean±Margin of error
= 
The given confidence interval is (4.52, 5.18)
Hence the statement is false.
Answer:
B, C, E
Step-by-step explanation:
This is correct. Trust me.
