normality assumption - If my histogram shows a bell-shaped curve

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

Normal Distribution - MathBitsNotebook(A2)

Normal distribution

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Assumptions and Normality

How do I know if my data have a normal distribution? - FAQ 2185 - GraphPad

Statistics column

What are the four assumptions of linear regression? – Gaurav Bansal

Normal Distribution for Lean Six Sigma - LSSSimplified

Normal Distribution, Introduction to Statistics

Normality Test: What is Normal Distribution? Methods of Assessing Normality

Plot Normal Distribution over Histogram in R - GeeksforGeeks

plot - Overlay normal curve to histogram in R - Stack Overflow

4 Normality Regression Diagnostics with R

Checking those all-important ANOVA residual diagnostic plots

Normal Approximation for Probability Histograms, Boundless Statistics