Answer:
Step-by-step explanation:
A group of eight friends (five girls and three boys) plans to watch a movie but they have only five tickets how many different c
1 answer:
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The given function is
The inverse function is
To get the inverse, we swap each x and y coordinate.
The rule is
So that's why the point (0,1) becomes (1,0) for instance.
Answer:
3694.5 yd^3
Step-by-step explanation:
cone volume equation:
π x x
π (28 yd/2)^2 x (18/3)
π x 196 x 6
3694.5 yd^3
Answer:
a: z = -1.936
b: 0.0265
d: z < -1.645
Reject H0 if z < -1.645
Step-by-step explanation:
We are given:
H0: µ = 20
HA: µ < 20
n = 60, sample mean: 19.6, σ = 1.6
Since the alternate hypothesis has a < sign in it, it is a left tailed test. The < or > sign in the alternate hypothesis points towards the rejection region.
For a: We need to calculate the test statistic for our situation. This is done with a z-score formula for samples.
For b: we need to use the z-score table to look up the p-value for the score we calculate in part a. The p-value is 0.0265. This means that there is only about a 2.65% chance that the sample values were a result of random chance.
For d: Since the significance level is 0.05, and this is a one tailed test, we have a critical value of z < - 1.645. This means that if the z-score we calculate in part a is less than -1.645, we will reject the null hypothesis
See attached photo for all the calculations!
