Is equal to 19 u add the 9 plus the ten so u get 19
(5+5)²-17-3
(25)²-17-3
625-17-3
605
Answer:
122
Step-by-step explanation:
32+32+29+29=122
Okokokokokokoo okkk amánsanos a san
Answer:
94
Step-by-step explanation:
Margin of error = E = $ 120
Confidence Level = 95%
The z-score for 95% confidence level from the z-table = z = 1.96
Population standard deviation = σ = $593
Sample size = n = ?
The formula to calculate the margin of error is:

Re-arranging the equation, we get:

Using the given values in above equation, we get:

Rounding of to next higher integer, we get n = 94
Thus, we need a sample size of 94 to estimate an unknown population mean μ