Answer:
There is enough evidence to make the conclusion that the population mean amount of time to assemble the Meat Man barbecue is not equal to 10 minutes (P-value=0.009).
Step-by-step explanation:
We have to perform an hypothesis test on the mean.
The null and alternative hypothesis are:
![H_0: \mu=10\\\\H_1: \mu \neq 10](https://tex.z-dn.net/?f=H_0%3A%20%5Cmu%3D10%5C%5C%5C%5CH_1%3A%20%5Cmu%20%5Cneq%2010)
The significance level is
.
The test statistic t can be calculated as:
![t=\frac{M-\mu}{s/\sqrt{N} } =\frac{11.2-10}{3.1/\sqrt{50} }=2.737](https://tex.z-dn.net/?f=t%3D%5Cfrac%7BM-%5Cmu%7D%7Bs%2F%5Csqrt%7BN%7D%20%7D%20%3D%5Cfrac%7B11.2-10%7D%7B3.1%2F%5Csqrt%7B50%7D%20%7D%3D2.737)
The degrees of freedom are:
![df=N-1=50-1=49](https://tex.z-dn.net/?f=df%3DN-1%3D50-1%3D49)
The P-value (two-tailed test) for t=2.737 and df=49 is P=0.00862.
This P-value (0.009) is smaller than the significance level, so the effect is significant. The null hypothesis is rejected.
There is enough evidence to make the conclusion that the population mean amount of time to assemble the Meat Man barbecue is not equal to 10 minutes.
5x(8 - 4)/4 - 2
Remember to follow PEMDAS.
First, subtract 8 and 4
8 - 4 = 4
5x(4)/4 - 2
Next, follow the left -> right rule, and multiply 5x and 4
5x(4) = 20x
Divide by 4
20x/4 = 5x
Finally, note that one has a variable, and the other has a constant, and so you cannot combine.
5x - 2 is your answer
hope this helps
Answer:
the correct answer is the product of current value and amount owed
A circle can’t weigh any inches just gonna say that now. Assuming you meant “height” of 3.125 inches, then the circumference is C=2(pi)r, where r is 1/2 the height (radius is half of the diameter, this situation the diameter being 3.125 inches.
Circumference would be approximately 9.8174770424681 inches—
Or shortened to 2 decimals it’s approximately
9.82 inches
Or approximately
9.8 inches
Or approximately
10 inches
618 hope this helps you have an amazing week