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Answer:
The distribution with n = 225 will give a smaller standard error.
Since sigma x = sigma/√n, dividing by the square root of 225 will result in a small standard error regardless of the value of sigma.
Step-by-step explanation:
Standard error is given by standard deviation (sigma) divided by square root of sample size (√n).
The distribution with n = 225 would give a smaller standard error because the square root of 225 is 15. The inverse of 15 multiplied by sigma is approximately 0.07sigma which is smaller compared to the distribution n = 100. Square of 100 is 10, inverse of 10 multiplied by sigma is 0.1sigma.
0.07sigma is smaller than 0.1sigma
Answer:
$51,557.00
Step-by-step explanation:
1100 times 9% = 99 a year
99 times 43 = 4257
1100 times 43 =47,300
then you add 47,300 + 4257 = 51,557
you take your total that she put into the ira and multiply it by 9%
then you multiply that total by the number of years before she retires which is 43
so 99 times 43 = 4257
then you will multiply how much she put in the ira at the beginning of the year which is 1100 by the 43 years before she retires which is 47,300
then you add your totals together
4257 + 47,300 = 51,557
Answer:
B
Step-by-step explanation:
this equation is in the form of ax^2+bx+c
so a is 4, b is -9, and c is 8
