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
Vitek1552 [10]
3 years ago
12

Researchers in education are performing a study to see if listening to soothing music while taking a standardized math test incr

eases the mean test score. The hypotheses are H 0 : mu=79 versus H a : mu>79 , and the p-value for the hypothesis test was 0.035.
At the 5 % significance level , what should the researchers conclude?


1. There is sufficient evidence to conclude that listening to soothing sounds increases the mean test score.


2. There is sufficient evidence to conclude that listening to soothing sounds decreases the mean test score.


3. There is insufficient evidence to conclude that listening to soothing sounds decreases the mean test score.

4. none of the above
Mathematics
1 answer:
Goshia [24]3 years ago
4 0

Answer:

1. There is sufficient evidence to conclude that listening to soothing sounds increases the mean test score.

Step-by-step explanation:

A  p - value less than 0.05  means that the test hypothesis is false or rejected.

In this question the test hypothesis is H 0 : mu=79  which is false as p-value is 0.035.

Whenever the p- value is less than the significance level H0 is rejected.

Hence the null hypothesis is rejected.

Therefore only choice 1 is correct.

There is  sufficient evidence to conclude that listening to soothing sounds increases the mean test score.

There is sufficient evidence to support the claim.

You might be interested in
Which is more? 1 gallon or 8 liters?
stiks02 [169]

Answer:

8 litres is roughly equivalent to 2 gallons, so 8 litres would be a lot more than 1 gallon. Hope this helps! :)

6 0
3 years ago
Read 2 more answers
Word phrase to represent 5x+2
notsponge [240]
Five times the number x plus two
7 0
3 years ago
Read 2 more answers
Which is the graph of the function f(x) = x2 + 2x + 3?
blagie [28]
Dy/dx=2x+2

So velocity will be zero when 2x+2=0, x=-1

Since d2y/dx2=2, it has a constant positive acceleration of 2, so that when dy/dx=0 it is at an absolute minimum value for f(x), which is also the vertex.

y(-1)=1-2+3=2

So the vertex is at (-1,2), which is an absolute minimum so the parabola opens upwards.

And by symmetry we can say that f(0)=f(-2)=3 so you have another two points that you can see (-2,3) and (0,3)
5 0
3 years ago
Read 2 more answers
For the given equation, find the values of a, b, and c, determine the direction in which
Shkiper50 [21]

Answer: Table D

Step-by-step explanation:

The coefficient of x^2 is -9, the coefficient of x is 7, and the constant is 0, so we know a = -9, b = 7, c = 0.

  • This eliminates tables A, B, and C.

Thus, table D is the answer.

7 0
2 years ago
Describe the error in the work shown.
gladu [14]

Your answer is option c. The final simplified form should have y to the 4th power instead of y cubed. I think so..

5 0
3 years ago
Other questions:
  • (v3-2v2-14v-5) ÷ ( v+3) What is the solution? Is dividing polynomials
    15·1 answer
  • Can you help me with 4 and 5 and 7 please please
    12·1 answer
  • Use the given conditional statement to determine the converse and inverse statements. If a line is vertical, then it has undefin
    9·1 answer
  • Which are correct representations of the inequality 6x > 3 + 4(2x - 1)? Select three options.
    6·2 answers
  • Plz Help if possible
    5·1 answer
  • Can you please help me with this I’ll give a brain list
    6·2 answers
  • Is this problem convergent or divergent?
    14·1 answer
  • What is 8 to the power of two?
    10·1 answer
  • PLEASE ANSWER ASAP FOR BRAINESLT!!!!!!!!!!!!!!!!!!
    15·2 answers
  • Use the law of cosines to gind the value of x and y.​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!