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
skelet666 [1.2K]
3 years ago
6

A group of 50 New York psychology students got a mean score of 530 on the psychology GRE with a standard deviation of 80. These

students claim to be WAY more nerdy than a group of 50 California psychology students who had a mean score of 515 with a standard deviation of 50. Are the New York students truly more nerdy than the California students?
Mathematics
1 answer:
lesantik [10]3 years ago
3 0

Answer: No, New York students are not truly more nerdy than the California students.

Step-by-step explanation:

Since we have given that

Number of students in a group = 50

Mean score of New York psychology = 530

Mean score of California psychology = 515

Standard deviation = 80

So, we will find t-distribution first.

t=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\t=\dfrac{530-515}{\dfrac{80}{\sqrt{50}}}\\\\t=1.32

Let α = 5% = 0.05

So, t_{\alpha,2}=2.920

Since t < t(critical value)

No, New York students are not truly more nerdy than the California students.

You might be interested in
Evaluate the expression for q = -2. 8q=
Lostsunrise [7]

Answer:

-16

Step-by-step explanation:

8q

Let q = -2

8*-2

-16

3 0
3 years ago
What is the slope-intercept form equation of the line that passes through (2, 4) and (4, 10)?
Alika [10]
The answer is y = 3x - 2. To find slope, you subtract y2 - y1 and x2 - x1. In this case, y2 - y1 = 10 - 4 and x2 - x1 = 4 - 2. You would result in 6/2, which can be reduced to 3. Your slope is 3, so the first and second answer automatically are eliminated. Next, you could either draw it out on a coordinate plane or just visualize it. The starting point that goes through each line would be -2, which means D, or y = 3x - 2, is the correct answer.
7 0
2 years ago
What should be added to 7777 to get 4999<br>​
Anit [1.1K]
We should not add we should subtract -2778
6 0
3 years ago
What expressions are equivalent to 7^3 * 7^x
solong [7]

Answer:

The question = (7^3)*(7^x)

When multiplying two exponents with the same base, all you do is add the exponents together and keep the same base

Therefore,

(7^3)*(7^x) = 7^(3+x)

Step-by-step explanation:

7^3+x is the answer

3 0
2 years ago
A radio station gave away concert tickets every hour yesterday. At the end of the fifth hour, the station had 418 tickets left.
zaharov [31]
-22x+y=415

I think that this is the answer
3 0
3 years ago
Other questions:
  • Which of the following is an extraneous solution of square root 4x+41 = x+5
    5·1 answer
  • explain how you can use a box-and-whisker plot to find the range of a data set. a. the range is the difference of the values of
    5·1 answer
  • If f(x) = -8x - 4 and g(x)
    12·2 answers
  • Match the functions with their ranges. Tiles y = 3sin(x − π) (-∞, ∞) y = 1 − sin(x) [-1, 7] y = 3 + 4cos(x − π) [-3, 3] y = 2 +
    6·2 answers
  • Every 3 days, Marco fills up his car with gas. Every 8 days, he washes his car. On what day will Marco fill his car with gas and
    12·2 answers
  • ∠A and ∠B are supplementary. m∠A = (3x + 6), m∠B = (4x + 20). Find the measure of each angle.
    6·1 answer
  • Write 0.96 as a fraction in simplest form.<br> 0.96 =
    12·2 answers
  • Solve the system of equations by the substitution method.
    6·1 answer
  • Is y=2^x linear, exponential or neither
    15·1 answer
  • Find the length of the midsegment of each trapezoid.<br> 12)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!