Thermocouple Variances

The critical value for for this two-tailed test is. The rejection region is given by

Temperature: The heating should be adequate it should not fall below ……. or above ………

29. When the thermometer reads 40°C, carry the beaker out of the heating apparatus with a beaker tong.

15 In testing the hypotheses: H0 β1 ’ 0: vs. H1: β 1 ≠ 0 , the following statistics are available: n = 10, b0 = 1.8, b1 = 2.45, and Sb1= 1.20. The value of the test statistic is:

For d1, t-statistic=- 2.5334, t-statistic > t-critical. Thus we reject Ho and d1 is significant.

σB = 0.3 × (0.14)2 + 0.4 × (0.04)2 + 0.3 × (0.08)2 − (0.05)2 = 0.00594.

The critical value represents the point on the scale of test statistic value in which the null

5. Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth.

This test is a bit more complicated, in particular because the degrees of freedom are calculated from a much more complicated formula. Statistical software packages will handle this part for you under normal circumstances, but if you need to have the formula, here it

B. While heating two different samples of water at sea level, one boils at 102°C and one boils at

Therm-eze is nothing like its competitors when providing a constant reliable heat which lasts one to three hours. Therm-eze offers consumers a durable good that is reusable until the

The second step is defining the significance level, determining the degrees of freedom and finding the critical value. The a-level shows that for a result to be statistically significant, it cannot occur more than the a-level percentage of time by chance. The critical value can be obtained by using the t-test table. The degrees of freedom is

T = 47 days, TE = 43.17 days, and the sum of the variances for the critical activities is: (0.25 + 5.44 + 0.69 + 2.25) = 8.63. z T  TE  47  43.17 8.63  3.83  1.30 2.94

To achieve this, the final value from each thermocouple was set to be equal to the warm water bath temperature (370C), and the initial reading was set equal to the ice water bath temperature. Thus, for each thermocouple an equation was obtained using the two points to convert voltage readings to temperature. An example of the calibration for one of the thermocouples is shown in Appendix II.

It is a ficticious temperature and its value is slightly greater than the original temperature.