Hi, I need help with b), c), d) please. Suppose the value of Young's modulus (GPa) was determined for cast plates consisting of certain intermetallic substrates, resulting in the following sample observations: 116.7 115.8 114.8 115.4 115.5 (a) Calculate x.115.64Calculate the deviations from the mean. (Enter your answers to two decimal places.) x 116.7 115.8 114.8 115.4 115.5 deviation 1.06 .16 -.84 -.24 -.14 (b) Use the deviations calculated in part (a) to obtain the sample variance and the sample standard deviation. (Round your answers to three decimal places.) s2 = GPa2 s = GPa (c) Calculate s2 by using the computational formula for the numerator Sxx. (Round your answer to three decimal places.) GPa2(d) Subtract 100 from each observation to obtain a sample of transformed values. Now calculate the sample variance of these transformed values. (Round your answer to three decimal places.) GPa2
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Normal Distribution
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Hi, I need help with b), c), d) please.
Suppose the value of Young's modulus (GPa) was determined for cast plates consisting of certain intermetallic substrates, resulting in the following sample observations:
| 116.7 | 115.8 | 114.8 | 115.4 | 115.5 |
115.64
Calculate the deviations from the mean. (Enter your answers to two decimal places.)
| x | 116.7 | 115.8 | 114.8 | 115.4 | 115.5 |
| deviation | 1.06 | .16 | -.84 | -.24 | -.14 |
(b) Use the deviations calculated in part (a) to obtain the sample variance and the sample standard deviation. (Round your answers to three decimal places.)
| s2 | = | GPa2 |
| s | = | GPa |
(c) Calculate s2 by using the computational formula for the numerator Sxx. (Round your answer to three decimal places.)
GPa2
(d) Subtract 100 from each observation to obtain a sample of transformed values. Now calculate the sample variance of these transformed values. (Round your answer to three decimal places.)
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