Find the vertex, focus, and directrix of the parabola whose equation is given below. y-7=1/8(x-2)^2
1 answer:
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[ Answer ]
[ Explanation ]
- Find Area Of Rectangle That Measures 18 Feet Long And 15 Feet Wide
-----------------------------------
Area = Base · Height
Base - 15
Height - 18
- Insert Numbers Into Equation
15 · 18
- Solve
15 · 18 = 270
- Answer
270
Answer:
a
The null hypothesis is
The alternative hypothesis is
b
c
d
There no sufficient evidence to support the conclusion that the population mean sales prices for new one-family homes in the South is less expensive than the national mean of $181,900
Step-by-step explanation:
From the question we are told that
The population mean is
The sample size is
The sample mean is
The sample standard deviation is
The null hypothesis is
The alternative hypothesis is
Generally the test statistics is mathematically represented as
=>
=>
Generally the p-value is obtain from the z-table the value is
=>
From the calculation we see that
hence we fail to reject the null hypothesis
Thus there no sufficient evidence to support the conclusion that the population mean sales prices for new one-family homes in the South is less expensive than the national mean of $181,900