Question: A major tech company recently encouraged its software developers to play video games in their breaks. The company monitored the progress of 10 developers before

A major tech company recently encouraged its software developers to play video games in their breaks. The company monitored the progress of 10 developers before (population 1) and after the video games were encouraged. The company recorded the coding errors for each of the 10 developers and noticed that on average a developer was making 3.9 less coding errors per month after the games were encouraged. The standard deviation of the differences between the errors before and after was found to be 4.306.

With = 0.05, determine if there is a sufficient evidence to conclude that the encouragement to play video games in breaks was effective in lowering the mean coding errors?

a) Hypotheses:

b) Critical value(s):

c) Decision rule (under what condition H₀should be rejected):

d) Test statistic:

e) Decision (Reject H₀or not):

f) Decision interpretation:

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