Answer:
50.24
Step-by-step explanation:
The area formula for a circle is pi times radius squared so 4 squared is 16 and then you multiply it by 3.14 and you get the answer 50.24
Answer:
55 mph
Step-by-step explanation:
speed = 54.6667 miles per hour
approximately 55 miles per hour
hope this helps! :D
have a miraculous day!! <3
*plus, your stick student's dinner is pizza!! :D*
You should find the attached graphic to be helpful for what you need to know.
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:
The significance level is .
The test statistic t can be calculated as:
The degrees of freedom are:
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.