Question 233172
What avenues have you tried?
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Ho: u = 40
Ha: u is not 40
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Now add up all the numbers and divide by 30 to get the sample mean.
Now run a Ttest to get the test statistic and/or the p-value.
If the p-value is <5%, reject Ho.
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Let me know if this is what you need.
Cheers,
Stan H.