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
dusya [7]
3 years ago
15

A study of the effects of color on easing anxiety compared anxiety test scores of participants who completed the test printed on

either soft yellow paper or on harsh green paper. The scores for five participants who completed the test printed on the yellow paper were 17, 19, 28, 21, and 1 8. The scores for four participants who completed the test on the green paper were 20, 26, 17, and 24. Using the .05 level, test the researcher's prediction that participants should have lower anxiety scores when taking the test on the yellow paper than when taking the test on the green paper. What is the research hypothesis
Mathematics
1 answer:
Pavlova-9 [17]3 years ago
8 0

Answer:

H0 : μYellow = μGreen

H1 : μYellow < μGreen

Step-by-step explanation:

Let :

Yellow paper = μYellow

Green paper = μGreen

To test the hypothesis :

The null hypothesis is will state that there is no difference in mean of anxiety scores obtained for test taken of yellow and green papers

H0 : μYellow = μGreen.

The alternative hypothesis is the opposite of the null and it is to the left, where we want to test if the anxiety score is lower when take on a yellow paper

H1 : μYellow < μGreen

You might be interested in
Please answer this correctly
Troyanec [42]

Answer:

Mode

Step-by-step explanation:

Mean:

Before replacing = 464/8 = 58

After replacing 42 with 98 = 520/8 = 65

Mode:

Before replacing = 42

After replacing 42 with 98 = 98

Median:

25, 42 , 42 , 47, 55 , 59, 96,98

Before replacing =  47+55/2 = 51

25, 42 ,  47, 55 , 59, 96,98 , 98

After replacing 42 with 98 =  55+59/2 = 114/2 = 57

8 0
2 years ago
Explain how you could calculate the surface area of a<br> square pyramid.
lesya [120]

To find the surface area, use this square pyramid surface area formula: Square Pyramid Surface Area = 2 x B x S + B 2 B = Width of the Square Base S = Slant length of one of the triangular faces and is calculated from the height and base width by using the equation: S= The square root of [(.5B) 2 + Height 2] .

8 0
2 years ago
Read 2 more answers
Matthew is standing near a flag pole as shown in the picture. There is a support wire that has been place on the ground to the t
mash [69]

Answer:

60

Step-by-step explanation:

10 x 6 is what?

Took the test :p

7 0
3 years ago
In ΔEFG, e = 4.7 inches, f = 4.8 inches and g=3.6 inches. Find the measure of ∠E to the nearest 10th of a degree.
AleksAgata [21]

Answer:

66.3

Step-by-step explanation:

i just did it on deltamath

7 0
3 years ago
2. Find the common difference and the recursive formula. a. 22, 19, 16, 13, …
Musya8 [376]

Answer:

The common difference d is d = -3

The recursive formula is: \mathbf{a_n=a_{n-1}-3}

Step-by-step explanation:

We need to find the common difference and the recursive formula.

a. 22, 19, 16, 13, …

First we will find common difference

The formula of arithmetic sequence is: a_n=a_1+(n-1)d

where a_n is nth term, a_1 is 1st term and d is the difference

Looking at the sequence we get: a_1=22, a_2=19

Using these values we can find d, the common difference

a_n=a_1+(n-1)d\\put\:n=2, a_2=19, a_1=22\\19=22+(2-1)d\\19=22+d\\d=19-22\\d=-3

So, the common difference d is d = -3

Now, we will find the recursive formula:

The recursive formula is of type: a_n=a_{n-1}+d

We have found common difference d = -3

So, the recursive formula will be:

a_n=a_{n-1}+d\\a_n=a_{n-1}+(-3)\\a_n=a_{n-1}-3

The recursive formula is: \mathbf{a_n=a_{n-1}-3}

6 0
3 years ago
Other questions:
  • Which of the following is the solution to the equation
    11·1 answer
  • Mark simplified three over five ÷ five over eight; his work is shown below. Identify where he made his error. (5 points)
    14·1 answer
  • A building contractor has a piece of crown molding that is 48 1/2 inches long he cuts off one piece measuring 10 1/4 inches and
    5·1 answer
  • I need help with this. Thank you so much!
    15·2 answers
  • Please anyone help me please with this?!!​
    8·1 answer
  • What are the coordinates of C’ of the image?
    14·1 answer
  • HELP PLEASE LOOK AT THE PIC ATTACHED <br><br> A PAIR OF PARALLEL LINES IS AND
    9·1 answer
  • Simplify 3.8x + 11.5
    10·1 answer
  • Mr. Jansen opened a savings account with an initial deposit of $720 and will not make any additional deposits or withdrawals. Th
    14·2 answers
  • Write each ratio in 3 different ways.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!