# Statistics, Left-tail Hypothesis test using t-statistic

Question

The average IQ of a group of researchers is quoted to be 260. Thinking that this figure is too large, consulting firm tested a random sample of 8 researchers and found that the average IQ was 250 with s=8. Test at a level of significance of 1%.

https://brainmass.com/statistics/students-t-test/statistics-left-tail-hypothesis-test-using-t-statistic-109719

#### Solution Preview

Null Hypothesis: H0 : µ = 260 and that the average IQ of the population is ...

#### Solution Summary

The detailed step by step solution is given to the posted problem. The solution is explained with every minute detail so that the student could use this solution as a model to solve other problems of the same model.

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