NuringCAS Sumit Appli go ernment assignment , school of Nursing 1 Langto B au t

Question

NuringCAS Sumit Appli go ernment assignment , school of Nursing 1 Langto B au t Pre Test-STAT 16 × rarer, Appication Process (SN) 9150tak https://tartrinenstructure 1 pts Question 9 A small computing cenber has found that the number of jobs submited per day to its computers has a distrilbution that is approximabely bel-shaped, with a mean of 82 jobs and a standard devlation ol 7.Using the Empirical Rule, where do we expect most (approximately 95%) of the distribution to fall Obetoeen 75 and 89jas per day Question 10 1 pts The following data represents a random sample of 35 online purchases in 5 on Cyber Monday 183 | 215 | 22s 2 186 21622924 Does the sampling dhtribution of the sample mean purchase on Cyber Monday have a normal disrbution Theorem p earch

Explanation / Answer

9)
=82
=7

For approx 95% , z score is between -2 and 2 (using emperical formula)

when z=-2
x=z* +
=-2*7 +82
=68

when z=2
x=z* +
=2*7 +82
=96

So we get number of jobs between 68 and 96
Hence second choice is right

10)
Here if we count the number of data,we see that we have 7 rows and 5 columns
so total data =7*5 =35
since n=35 which is greater than 30,
So,Yes,since n>30 ,the centeral limit theorem guarantees normality

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