Answer:
D,E,F (last three)
Step-by-step explanation:
Just finished the problem.
Answer:
a) Null hypothesis: H₀ : μ = 57
Alternative hypothesis H₁ : μ ≠ 57
b) The calculated value t =4.077 > 1.6896 at 99% of confidence degrees of freedom.
Natalie is trying to prove the new technique is an improvement over the old technique.
Step-by-step explanation:
<u>Step:-(i)</u>
The average speed of a volleyball serve is 57 miles per hour.
μ = 57 miles per hour
Average speed using the new technique was 58.9 miles per hour, with a standard deviation of 2.8 miles per hour.
sample mean x⁻ = 58.9 miles per hour
Standard deviation S = 2.8 miles per hour.
<u>Step:-(ii)</u>
Null hypothesis: H₀ : μ = 57
Alternative hypothesis H₁ : μ ≠ 57
Degrees of freedom γ=n-1
The test statistic
t = 4.077
Degrees of freedom γ=n-1 = 35-1 =34
tₐ = 2.0322
<u>The calculated value t =4.077 > 1.6896 at 99% of confidence degrees of freedom.</u>
<u>The Natalie is not trying to prove the new technique is an improvement over the old technique.</u>
Step-by-step explanation:
Y=1/3-3/1
-x+1= 1/3-3/1
= -3+1
= -2.
<span>The diagonals of a rectangle have equal lengths. Since AC has a length of 28,
and AC is a diagonal, the other diagonal BD also has a length of 28.
The diagonals of a rectangle also bisect each other. So diagonal BD is
bisected by the other diagonal AC at point E. And since diagonal BD has
a length of 28 then BE and ED both have a length which is of 28,
or 14 each.
Answer: ED has a length of 14.</span>