(Answered) A claim was made that actual age of starting to drive is

Statistics

A claim was made that actual age of starting to drive is 21.

Ho: m = 21

Ha: m < 21

The sample of randomly taken n=25 teenagers showed that mean x¯ =20.4

Distribution is normal, and population standard deviation is σ = 1.5.

Complete all steps the Hypothesis Testing and make decision if your sample data support the claim at the significance level 0.05.

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