Answer:
no options
give the options and i will edit my answer
There was 288 children at the amusement park.
The angles that make a square are 4 right angles. So 360°.
<BAC is half of the square but it's not 180°.
It's 90 because you are measuring BAC not CBA or vice versa.
Conclusion, <BAC = 90°.
Answer:
-1.649313114
Step-by-step explanation:
Sample size, n=171
Sample mean, x=67.6
Standard deviation, s=11.1
Study claims mean pulse 
Null hypothesis


Test statistic is given by
hence

The test static value is -1.649313114