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

Discussion in 'Calculator Requests' started by math_celebrity, Jan 7, 2017.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    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
     

Share This Page