You have to orginize them from smallest to largest, 'x' is the median so I put it in the middle:
3, 4, 10, x,15, 18, 21
That means 11-14 could be x.
Answer:-5(-2)(-3)
-5x(-2)
10
10x(-3)
-30
Step-by-step explanation:
The greatest amount of money that could be rounded to $105.40 would be $105.44. Any higher, and it would be rounded to $105.50.
Answer:
Step-by-step explanation:
Given that population average is 0.8 ampere
Sample size = 9
Sample mean x bar = 1.34 A
Sample std dev s = 0.48

(one tailed test)
Mean difference - 
Std error = 
t test can be used since sigma is not known and sample size small
t statistic = mean diff/std error = 3.5
df = 8
p value = 0.00404