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  3. consider the following sample data with mean and standard deviation...

Question: consider the following sample data with mean and standard deviation...

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Consider the following sample data with mean and standard deviation of 18.1 and 7.4, respectively. (You may find it useful to reference the appropriate table: chi-square table or F table)

Class Frequency
Less than 10 33
10 up to 20 88
20 up to 30 69
30 or more 13
n = 203

b-1. Calculate the value of the test statistic. (Round the z value to 2 decimal places, all other intermediate values to at least 4 decimal places and final answer to 3 decimal places.)

Test statistic
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