normality assumption - If my histogram shows a bell-shaped curve
![](https://i.stack.imgur.com/X947n.png)
I created a histogram for Respondent Age and managed to get a very nice bell-shaped curve, from which I concluded that the distribution is normal. Then I ran the normality test in SPSS, with n = 1
Statistics column
![](https://fastercapital.com/i/Normality-assumption--Assessing-Normality-Assumption-in-MLR-Analysis--Graphical-Methods-for-Assessing-Normality.webp)
Normality assumption: Assessing Normality Assumption in MLR Analysis - FasterCapital
![](https://www.statology.org/wp-content/uploads/2021/09/normR1.png)
How to Test for Normality in R (4 Methods) - Statology
![](https://www.statsdirect.com/help/resources/images/normalhistogram.gif)
Normal Distribution and Standard Normal (Gaussian) - StatsDirect
![](https://s3-us-west-2.amazonaws.com/courses-images/wp-content/uploads/sites/1888/2017/05/11170603/Kiernan_media015_fmt.png)
Chapter 1: Descriptive Statistics and the Normal Distribution
![](https://blog.minitab.com/hs-fs/hubfs/Imported_Blog_Media/probability_plot_of_ball_diameter.jpg?width=300&height=200&name=probability_plot_of_ball_diameter.jpg)
Assumptions and Normality
![](https://www.scribbr.de/wp-content/uploads/2023/01/Standard-normal-shaded-area.webp)
Normal Distribution Examples, Formulas, & Uses
![](https://www.researchgate.net/publication/275769377/figure/fig4/AS:667718294462464@1536207855060/Histogram-of-the-residuals-data-that-has-a-bell-shaped-curve-which-shows-that-residuals.png)
Histogram of the residuals data that has a bell-shaped curve which
![](https://i.stack.imgur.com/61OXt.png)
regression - Normal Distribution Curve - Cross Validated
![](https://i0.wp.com/statisticsbyjim.com/wp-content/uploads/2018/09/normal_100.png?resize=576%2C384)
Assessing Normality: Histograms vs. Normal Probability Plots - Statistics By Jim
How do I know if my data have a normal distribution? - FAQ 2185 - GraphPad
![](https://miro.medium.com/v2/resize:fit:700/1*6nObGm0EsLJj-dnZ7pEvIg.png)
Normality testing: The graphical way, by Pawan Nandakishore
![](https://i0.wp.com/statisticsbyjim.com/wp-content/uploads/2018/09/normal_probability_plot_C4.png?fit=576%2C384&ssl=1)
Assessing Normality: Histograms vs. Normal Probability Plots - Statistics By Jim
![](https://blog.minitab.com/hubfs/Imported_Blog_Media/distribution_plot.jpg#keepProtocol)
Assumptions and Normality
![](https://www.scribbr.com/wp-content/uploads/2023/01/Normal-curve-fitted.webp)
Normal Distribution Examples, Formulas, & Uses