Answer:
cosM ≈ 0.3048
Step-by-step explanation:
remember SOH CAH TOA = sine: opposite/hypotenuse; cosine: adjacent/hypotenuse; tangent: opposite/adjacent
cos = CAH
cosM= a / c
cosM = 4.0 / 13.1244
cosM = 0.30477
cosM ≈ 0.3048
Answer:
3) One-sided,compare two populations
Step-by-step explanation:
A manufacturer wants to investigate the whether there is an increase in the mean gas mileage of mid-sized sedan having new type of tire compared to mean gas mileage of mid-sized sedan not having new type of tire.
So, there are two populations :
population 1 : mid-sized sedan having new type of tire.
population 2 : mid-sized sedan not having new type of tire.
So, two populations are being compared.
Also, A manufacturer is investigating whether there is an increase in mean gas mileage.The alternative hypothesis will be right tailed and so, this corresponds to one sided test.
Answer:
Find each of the following probabilities for a normal distribution:
a. p(z>1.20) Answer:
b. p(z> .40) Answer:B
c. p(z <1.75) Answer:
d. p(z>-1.30) Answer:
e. p(z<-.60) Answer:
Step-by-step explanation:
Explanation
Dount
Answer:
0.5
Step-by-step explanation:
The standard normal curve is symmetrical about the mean, which is also the median and the mode.
That means half the area is above the mean. The whole curve has an area of 1, so ...
the numerical value of the area above the mean is 0.5
