Yes if he practices X amount of hours and is told to practice X amount of hours than he practiced long enough
Answer:
The p value would be given by:
For this case since th p value is lower than the significance level of0.05 we have enough evidence to reject the null hypothesis and we can conclude that the true mean for this case is significantly different from 46.7 MPG
Step-by-step explanation:
Information given
represent the mean
represent the population standard deviation
sample size
represent the value to verify
represent the significance level for the hypothesis test.
z would represent the statistic
represent the p value
Hypothesis to test
We want to test if the true mean for this case is 46.7, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
Since we know the population deviation the statistic is given by:
(1)
Replacing we got:
The p value would be given by:
For this case since th p value is lower than the significance level of0.05 we have enough evidence to reject the null hypothesis and we can conclude that the true mean for this case is significantly different from 46.7 MPG
The answer is the second one from the top
Answer:
Volume of cylindrical tank is 2122.64 cubed feet.
Step-by-step explanation:
It is given that:
Radius of cylindrical tank = 6.5 feet
Height of tank = 16 feet
Volume of tank = πr²h
Putting the values in the formula
Volume = 3.24 * (6.5)² * 16
Volume = 3.14 * 42.45 * 16
Volume = 2122.64 cubed feet.
Therefore,
Volume of cylindrical tank is 2122.64 cubed feet.
he bought 18 horses, the cows are irrelevant to the question, that was in there to confuse you.