Answer:
4.0486
Step-by-step explanation:
The margin of error is calculated using 
Where n=60 is the sample size and
is the population standard deviation.
The critical value corresponding to 95% confidence interval is 
We substitute the values to obtain;


Answer:
5.09
Step-by-step explanation:
Answer: 283.15
Step-by-step explanation: (50°F − 32) × 5/9 + 273.15 = 283.15K
Answer:
Positive 2
Step-by-step explanation:
its like ur subtracting 9+ (-7)
its basically 9-7=2
but not all problems r like this.
Brainlest plz