Answer:
Check Explanation
Step-by-step explanation:
Normally the mean mileage for the 36 cars without the additive is 25 miles per gallon of gas with a standard deviation of 2.4 mpg
With the additive, the mileage improves to 25.8 mpg.
The sample mean without additive is 25 mpg
The standard deviation of the distribution of sample means for mileage without additive = σₓ = (σ/√n)
where σ = normal standard deviation = 2.4 mpg
n = Sample size = 36
σₓ = (σ/√n) = (2.4/√36)
σₓ = 0.4 mpg
So, a normal distribution of sample means for mileage without gas should have 95% of the possible values between 2 standard deviations of the mean. That is, within 24.2 mpg and 25.8 mpg.
Therefore, a mileage of 25.8 mpg with the additive added cannot point at a significant effectiveness of the additive as this data has shown that 25.8 mpg is within the possible values for sample means for mileage without the use of additives.
Although, it does point at an improved performance with the additive because a sample mean of 25.8 mpg without the additive is on the outskirts of possible sample mean values.
Hope this Helps!!!
Answer:
The correct option is;
A) Components: [0.30, 0.70], magnitude: 0.76
Step-by-step explanation:
The given parameters are;
The path of the of the airplane at 5 a.m. given by The National Weather Service = [3, 7]
The location of the hurricane at 6 a.m. = 1/10 of the total distance between the point where it was detected to the point where it is predicted to make land fall
Therefore;
The components of the vector at 6.00 a.m. = 1/10 × [3, 7] = [0.3, 0.7]
The magnitude of the vector at 6.00 a. m. = √(0.3² + 0.7²) ≈ 0.76.
Answer:8 hours
Step-by-step explanation: divide 96\12 and then that’s how many hours
So the first thing you have to do is look at the input and output values and find the pattern. This is probably the hardest part. So 32-12=20 and 14-12=2 so we found the pattern all you have to do is find whats missing. So we have a blank and then a 14, all you do is add 12 to the 14 to find the input so the input for that would be 26 and now to find the other missing term you subtract 12 and that gives you -22. I hoped that helped.
