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27 Sample No. Porosity Homework 1 0.155 Developa spreadsheet program and use it to calculate sample mean and standard deviation of the given data set. Does the data follow a normal distribution pattern? 0.164 0.145 0.152 0.162 0.143 0.135 0.122 0.161 0.181 0.195 0.157 0.154 0.161 0.158 0.147 0.162 0.154 0.149 0.172 28 DELL
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Answer #1

putting above data in ascending order:

2111 (000000000000000000000 22112 792 5 000000000000000000003 12345678901 7

sample mean =0.156

sample standard deviation =0.016

as we can see that all the values are centered around mean approximate symmetrically as well with in 3 standard deviation ; it appears to be normally distributed,

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