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]
4 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]4 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
mark purchased a new motorcycle for $23,000. F the value of the motorcycle decreases by 151 each year, what will it be worth in
HACTEHA [7]
151 * 5 = 755
23,000 - 755 = 22,245

It'll be worth $22,245 in 5 years.
4 0
3 years ago
What's the slope of the line?​
mixas84 [53]

Answer:

The slope is -1

Step-by-step explanation:

It's decreasing which means it's negative and it decreases by 1 every time x increases by 1.

6 0
3 years ago
When you look at a speck of mold how many microbes are you most likely seeing
jek_recluse [69]
100,000,000 microbes in a speck of mold 
4 0
3 years ago
CHORES Wayne raked 30 bags of leaves in 3 hours. If he raked the same number of bags each hour, how many bags of leaves did he r
zubka84 [21]

divide total bags by number of hours

30 bags / 3 hors = 10 bags per hour

 he racked 10 bags per hour

7 0
3 years ago
Read 2 more answers
What are the steps to solve <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B20%20%7Bk%7D%5E%7B3%7D%20%7D%20" id="TexFormula1"
vlada-n [284]
\bf \sqrt{20k^3}\qquad &#10;\begin{cases}&#10;20=2\cdot 2\cdot 5\\&#10;\qquad 2^2\cdot 5\\&#10;k^3=k^{2+1}\\&#10;\qquad k^2\cdot k^1&#10;\end{cases}\implies \sqrt{2^2\cdot 5\cdot k^2\cdot k}\implies 2k\sqrt{5k}
3 0
3 years ago
Other questions:
  • Can someone please explain to me step by step how to do these
    15·1 answer
  • 5x^2 - 9 - 7x^2 - x + 1
    9·1 answer
  • Which of the following shapes is the cross-section for a cylinder?
    13·1 answer
  • Answer the following NEED ANS ASAP GIVING U 15points
    12·2 answers
  • IM TAKING A TEST, HELP!
    12·1 answer
  • Please help me this is called Writing Equations
    6·1 answer
  • Usha thinks that the area of the development will be greater than the total area of 50 football pitches.
    8·1 answer
  • F=((-1,1),(1,-2),(3,-4)) g=((5,0),(-3,4),(1,1),(-4,1)) find (f/g)(1)
    11·1 answer
  • In Example 9.2 (p. 214), if you instead carried the suitcase by the handle so that the suitcase was hanging directly at your sid
    7·1 answer
  • When you have &gt; or &lt;, the solutions are only in the shaded area.<br> True <br> or<br> False
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!