Answer:
Yes, There is significant difference.
Step-by-step explanation:
Null Hypothesis , H0 : Mean income = 15000
Alternate Hypothesis , H1 : Mean income ≠ 15000
t = (x - u) / ( s / √n)
x = sample mean = 14500 here, u = population mean = 15000 here , s = standard deviation = 975 here , n = sample size
t = (14500 - 15000) / (975 / √169)
-500 / 75 = - 6.66
As calculated t value in absolute terms is > 1.96 , ie tabulated value at 95% significance level (two sided). So we reject the null hypothesis in favor of alternate hypothesis. Hence, we state that 'Mean Income ≠ 15000'
Answer: 15
first find 1% of 48
it will be 48/100 = 0.48
now to find 29% multiply 1% with 29
it will 29*(.48) = 13.92
most close to 14. Also Close to 15.
That's all easiest way to solve such question.
2-5/q=16
-5/q =2=16
(-5)+qx2/q=16
q=-5/14
Answer:
C
Step-by-step explanation:
its 2/5 for the evens 3/5 for odds multiply and you get 6/25
Answer:
B
Step-by-step explanation:
So we have the expression:
Since 5 goes into both 15 and 50, we can factor out a 5. First, rewrite the numbers as:
Factor out the 5:
So, our answer is B
And we're done!
