1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zielflug [23.3K]
3 years ago
10

A national organization has been working with utilities throughout the nation to find sites for large wind machines that generat

e electricity. Wind speeds must average more than 15 miles per hour (mph) for a site to be acceptable. Recently, the organization conducted wind speed tests at a particular site. Based on a sample of wind speed recordings (taken at random intervals), the wind speed at the site averaged with a standard deviation of To determine whether the site meets the organization's requirements, consider the test, where μ is the true mean wind speed at the site and Fill in the blanks. "A Type I error in the context of this problem is to conclude that the true mean wind speed at the site _____ 15 mph when it actually _____ 15 mph."
Mathematics
1 answer:
kozerog [31]3 years ago
8 0

Answer:

"A Type I error in the context of this problem is to conclude that the true mean wind speed at the site is higher than 15 mph when it actually is not higher than 15 mph."

Step-by-step explanation:

A Type I error happens when a true null hypothesis is rejected.

In this case, as the claim that want to be tested is that the average wind speed is significantly higher than 15 mph, the null hypothesis has to state the opposite: the average wind speed is equal or less than 15 mph.

Then, with this null hypothesis, the Type I error implies a rejection of the hypothesis that the average wind speed is equal or less than 15 mph. This is equivalent to say that there is evidence that the average speed is significantly higher than 15 mph.

"A Type I error in the context of this problem is to conclude that the true mean wind speed at the site is higher than 15 mph when it actually is not higher than 15 mph."

You might be interested in
Is this true or false need answer asap
VLD [36.1K]
Answer: True

Step-by-Step Explanation:

=> 2x + 3y = -7 (Eq. 1)
=> -x = 2y (Eq. 2)
=> x = 1, y = -3

Substitute values of ‘x’ and ‘y’ in Eq. 1 :-

=> 2x + 3y = -7
= 2(1) + 3(-3) = -7
= 2 + -9 = -7
=> -7 = -7
=> LHS = RHS

Therefore, it is a Solution.
3 0
2 years ago
What is the equation of the horizontal line through (-4, 6)?
lbvjy [14]
The equation of a horizontal line is
y
=
c
for some constant
c
Since we are told that the line passes through
(
x
,
y
)
=
(
−
4
,
6
)
Then for at least one point on the line
y
=
6
But for a horizontal line this value is a constant for all points on the line.
So the equation for all points on the line is
y
=
6
6 0
3 years ago
Find X intercept of f(x)=2(x-4)^2+2
Fofino [41]

Step-by-step explanation:

f(x) = 2( x - 4) ^{2}  + 2 \\ f(x) = 2({x}^{2}  - 8x + 16) + 2 \\ f(x) = 2 {x}^{2}  - 16x + 32 + 2 \\ f(x) = 2 {x}^{2}  - 16x + 34

8 0
2 years ago
Translate 2/3 y − 9 < y + 1 into a sentence
erma4kov [3.2K]

Answer: Nine less than two thirds of a quantity is smaller than one more than that same quantity.

4 0
3 years ago
What is the value of cos(150°)?
baherus [9]

ANSWER

-\frac{\sqrt[]{3}}{2}

EXPLANATION

Given

\begin{gathered} \cos \text{ 150} \\  \end{gathered}

We can find cos 150 by using

\begin{gathered} \cos (180-\theta)=-\cos \theta \\ \Rightarrow\cos (180-\theta) \\ =-\cos 30 \end{gathered}

recall that

\begin{gathered} \cos 30=\frac{\sqrt[]{3}}{2} \\  \end{gathered}

Hence,

\begin{gathered} \cos 150=-\cos 30 \\ =-\frac{\sqrt[]{3}}{2} \\  \end{gathered}

Therefore, the value of cos 150 is

-\frac{\sqrt[]{3}}{2}

4 0
1 year ago
Other questions:
  • Can u plz show work?Only need 84
    14·1 answer
  • How do you do this to get one pls I need help
    12·1 answer
  • If necessary, combine like terms. (x-10)(x-10)
    9·1 answer
  • 1) the point where the x abd y axis meet 2) if m< A + m<D = 90, then <A and D are ____ angles 3) an angle formed by opp
    12·1 answer
  • I really need help!!! It would mean a lot if someone could help me.
    15·2 answers
  • Hope someone can help me with this
    10·1 answer
  • Of 60 randomly chosen students from a school surveyed,16 chose aquarium as their favorite fiel trip.There are 720 students in th
    14·1 answer
  • Help needed! What is the amplitude of this graph and given there are no other transformations, write the equation of this cosine
    7·1 answer
  • Can anyone help me with my homework?
    9·1 answer
  • *100 points* pls help on this edulastic, brainly community. Answer the questions in the pic.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!