Imagine that a researcher wanted to know the average weight of 5th grade boys in a high school. He r | MathCelebrity Forum

Imagine that a researcher wanted to know the average weight of 5th grade boys in a high school. He r

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Imagine that a researcher wanted to know the average weight of 5th grade boys in a high school. He randomly sampled 5 boys from that high school. Their weights were: 120 lbs., 99 lbs, 101 lbs, 87 lbs, 140 lbs. The researcher posed a null hypothesis that the average weight for boys in that high school should be 100 lbs. What is the absolute value of calculated t that we use for testing the null hypothesis?

Mean is 109.4 and Standard Deviation = 20.79182532 using our statistics calculator

Now use those values and calculate the t-value
Abs(t value) = (100 - 109.4)/ 20.79182532/sqrt(5)
Abs(tvalue) = 1.010928029
 
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