Regression Project: Analyzing Real Life Data with Bell Curve Challenges

  • Thread starter Thread starter Melindaneta
  • Start date Start date
  • Tags Tags
    Project Regression
AI Thread Summary
The regression project involves analyzing a dataset of 18 points with a mean of 5.43 and a standard deviation of 0.971. The 95% confidence interval for the mean ranges from 4.951 to 5.916, with a median of 5.45. The confusion arises regarding the formation of a Bell Curve, as the user mistakenly believes there are two medians, when in fact there is only one. The discussion highlights the distinction between modes and medians, suggesting a potential bimodal distribution if there are two modes present. Clarification on whether the data is from a discrete or continuous variable is also sought.
Melindaneta
Messages
1
Reaction score
0
I have a regression project where I have to pick a real life situation data and answer questions.
here is my data:

18 data points were entered:
4.00 4.20 4.50 4.60 4.60 4.70 4.90 5.10 5.40 5.50 5.60 5.60 5.80 6.00 6.10 6.80 6.90 7.50

Mean = 5.43

95% confidence interval for actual Mean: 4.951 thru 5.916

Standard Deviation = 0.971

Hi = 7.50 Low = 4.00

Median = 5.45

Average Absolute Deviation from Median = 0.767

SO One of my questions require me to make a Bell Curve. According to my data I can't.. because I have two medians. I read online that when you have two medians it forms a Bimodal curve. I am so confused because in math B2 they only teach you about the Normal curve. Please help!
 
Physics news on Phys.org
You have only one median, 5.45.

EnumaElish
 
Did you mean two modes?
 
Is the data from a 'discrete variable' or a 'continuous variable'?
 

Thread 'Deductive proof in logic formal systems'

I was reading documentation about the soundness and completeness of logic formal systems. Consider the following $$\vdash_S \phi$$ where ##S## is the proof-system making part the formal system and ##\phi## is a wff (well formed formula) of the formal language. Note the blank on left of the turnstile symbol ##\vdash_S##, as far as I can tell it actually represents the empty set. So what does it mean ? I guess it actually means ##\phi## is a theorem of the formal system, i.e. there is a...
View full post »

Hot Threads

Recent Insights

Back
Top