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](https://tex.z-dn.net/?f=t%3D%5Cdfrac%7Bx-%5Cmu%7D%7B%5Cdfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D%7D%5C%5C%5C%5Ct%3D%5Cdfrac%7B530-515%7D%7B%5Cdfrac%7B80%7D%7B%5Csqrt%7B50%7D%7D%7D%5C%5C%5C%5Ct%3D1.32)
Let α = 5% = 0.05
So, ![t_{\alpha,2}=2.920](https://tex.z-dn.net/?f=t_%7B%5Calpha%2C2%7D%3D2.920)
Since t < t(critical value)
No, New York students are not truly more nerdy than the California students.
The answer I think would be y = 5 let me know if I'm wrong
Answer:
The solution is attached in the picture below
Step-by-step explanation:
Answer:A closed, or shaded, circle is used to represent the inequalities greater than or equal to (≥) or less than or equal to (≤) . The point is part of the solution. An open circle is used for greater than (>) or less than (<). The point is not part of the solution. Solving" systems of linear inequalities means "graphing each individual inequality, and then finding the overlaps of the various solutions". So I graph each inequality, and then find the overlapping portions of the solution regions.Step 1: Line up the equations so that the variables are lined up vertically. Step 2: Choose the easiest variable to eliminate and multiply both equations by different numbers so that the coefficients of that variable are the same. Step 3: Subtract the two equations. Step 4: Solve the one variable system.
Step-by-step explanation:
hope this helps have a great night ❤️❤️❤️
Answer: the mass of a neutron is approximately 2,000 times the mass of an electron
Step-by-step explanation:
- the easiest way to solve this (in my opinion) is to simply divide the mass of a neutron by the mass of an electron
- ![2 x10^{-24} / (9 x10^{-28} )](https://tex.z-dn.net/?f=2%20x10%5E%7B-24%7D%20%2F%20%289%20x10%5E%7B-28%7D%20%29)
= ![(2/9) x10^{-24--28}](https://tex.z-dn.net/?f=%282%2F9%29%20x10%5E%7B-24--28%7D)
= ![(2/9)x10^{-24+28}](https://tex.z-dn.net/?f=%282%2F9%29x10%5E%7B-24%2B28%7D)
≈ ![0.2222x10^{28-24}](https://tex.z-dn.net/?f=0.2222x10%5E%7B28-24%7D)
≈ ![0.2222x10^{4}](https://tex.z-dn.net/?f=0.2222x10%5E%7B4%7D)
≈ which is approximately 2222
- so 2222 is approximately 2000 times
- therefore, the mass of a neutron is approximately 2,000 times the mass of an electron
hope this helps :)