The following graph of f(x) = x2 has been shifted into the form f(x) = (x − h)2 + k:
1 answer:
You might be interested in
Distribute the to the
.
Rearrange the terms.
Combine the like terms.
Add on both sides.
This statement is false, so the equation has .
Answer:
option (b) 0.0228
Step-by-step explanation:
Data provided in the question:
Sample size, n = 100
Sample mean, μ = $20
Standard deviation, s = $5
Confidence interval = between $19 and $21
Now,
Confidence interval = μ ±
thus,
Upper limit of the Confidence interval = μ +
or
$21 = $20 +
or
z = 2
Now,
P(z = 2) = 0.02275 [From standard z vs p value table]
or
P(z = 2) ≈ 0.0228
Hence,
the correct answer is option (b) 0.0228