A recent national survey found that college students watched a population average of 7.02 YouTube videos per month with a population standard deviation of 4.86.A random sample of 16 PPCC college students found the sample average of 6.2 videos per month.With a 0.01 Significance Level, can we conclude that the national average has decreased?

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Copy Answer here: Z = __________

Chap 10: One Sample Z-Test

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Draw Curve

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Step 6:Conclusion: