Answer to Question #336699 in Statistics and Probability for joan

Question #336699

Solve for the t-computed value of the following. Write your answer to the nearest

hundredths. Show the complete solution.


  1. χ\chi =15 μ\mu = 12 s = 4 n = 12
  2. χ\chi = 7.8 μ\mu = 10 s = 5.1 n = 10
  3. χ\chi = 5 μ\mu = 5.3 s = 0.14 n = 8
  4. χ\chi = 7.2 μ\mu = 9.1 s = 1.8 n = 15
  5. χ\chi = 5 μ\mu = 7 s = 3 n = 10
1
Expert's answer
2022-05-04T13:05:07-0400

1.


t=xμs/n=15124/122.60t=\dfrac{x-\mu}{s/\sqrt{n}}=\dfrac{15-12}{4/\sqrt{12}}\approx2.60

2.


t=xμs/n=7.8105.1/101.36t=\dfrac{x-\mu}{s/\sqrt{n}}=\dfrac{7.8-10}{5.1/\sqrt{10}}\approx-1.36

3.


t=xμs/n=55.30.14/86.06t=\dfrac{x-\mu}{s/\sqrt{n}}=\dfrac{5-5.3}{0.14/\sqrt{8}}\approx-6.06

4.


t=xμs/n=7.29.11.8/154.09t=\dfrac{x-\mu}{s/\sqrt{n}}=\dfrac{7.2-9.1}{1.8/\sqrt{15}}\approx-4.09

5.


t=xμs/n=573/102.11t=\dfrac{x-\mu}{s/\sqrt{n}}=\dfrac{5-7}{3/\sqrt{10}}\approx-2.11


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