Answer:
D. If the P-value for a particular test statistic is 0.33, she expects results at least as extreme as the test statistic in exactly 33 of 100 samples if the null hypothesis is true.
D. Since this event is not unusual, she will not reject the null hypothesis.
Step-by-step explanation:
Hello!
You have the following hypothesis:
H₀: ρ = 0.4
H₁: ρ < 0.4
Calculated p-value: 0.33
Remember: The p-value is defined as the probability corresponding to the calculated statistic if possible under the null hypothesis (i.e. the probability of obtaining a value as extreme as the value of the statistic under the null hypothesis).
In this case, you have a 33% chance of getting a value as extreme as the statistic value if the null hypothesis is true. In other words, you would expect results as extreme as the calculated statistic in 33 about 100 samples if the null hypothesis is true.
You didn't exactly specify a level of significance for the test, so, I'll use the most common one to make a decision: α: 0.05
Remember:
If p-value ≤ α, then you reject the null hypothesis.
If p-value > α, then you do not reject the null hypothesis.
Since 0.33 > 0.05 then I'll support the null hypothesis.
I hope it helps!
I think it is 123 meters Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that rock experiments a constant acceleration, position function can be obtained by integrating twice:
The initial conditions of the rock are, respectively:
Position of the rock as a function of time is:
The time taken for the rock to hit the canyon floor is:
See a solution process below:
Explanation:
The formula for calculating the distance between two points is:
d
=
√
(
x
2
−
x
1
)
2
+
(
y
2
−
y
1
)
2
Substituting the values from the points in the problem gives:
d
=
√
(
2
−
4
)
2
+
(
9
−
7
)
2
d
=
√
(
−
2
)
2
+
2
2
d
=
√
4
+
4
d
=
√
8
Or
d
=
2.828
rounded to the nearest thousandth.
Or
d
=
√
4
⋅
2
d
=
√
4
√
2
d
=
2
√
2