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Known: Traffic averages 1825VPH Standard deviation pf 375VPH Sample of 20 days A) Use a t distribution to...

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Basic Math

Known: Traffic averages 1825VPH

Standard deviation pf 375VPH

Sample of 20 days

A) Use a t distribution to determine the probability of trafficexceeding 2200 VPH and

B) Use a t distribution to determine the t value for where t<0.02 (2%).

Answer & Explanation Solved by verified expert
4.3 Ratings (559 Votes)
Like in normal distribution we have a zscore in tdist wehave a tscore whereFor PX x We use since if we are    See Answer
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