Give all the numerical answers to 3 decimal places Q1. The manufacturer produces
ID: 3320028 • Letter: G
Question
Give all the numerical answers to 3 decimal places
Q1. The manufacturer produces hydraulic pumps. Valves are produced from two different facilities. The customer claims the mean relief pressure for pumps produced from Plant A are 25 psi higher than those produced at Plant B. To demonstrate their belief the Customer provided the following data.
Assuming unequal variances for the two plants, what is the Degrees of Freedom associated with this data?
Q2. For the data given in Q1 and assuming unequal variances for the two plants, what is the STANDARD ERROR used to estimate the sample statistic?
Q.3 Using the data from Q1 assuming unequal variances between the two plants, what is the absolute value of the Sample Statistic associated with this data?
Q.4 For the data given in Q1 and assuming unequal variances, what is the p-Value associated with the Sample Statistics? Give your answer to 5 decimal places!
Q.5 Using the data from Q1 and assuming unequal variances for the two plants, what is the absolute value of the Critical Statistic associated with a Type 1 Error of 2.5%?
Q 6. In your analysis for the data given in Q1, is the Customer correct in stating that the mean relief pressure for pumps produced in Plant A are 25 psi higher than pumps produced in Plant B - assuming unequal variance?
Q 7. For Q1, we assumed the variance in the relief pressure from the two plants is not equal. For the data given by the customer (and given below) what is the Sample Statistic (F-statistic) for the data?
Q 8. For Q1, we assumed the variance in the relief pressure from the two plants is not equal. For the data given by the customer (and given below) what is the p-Value that is associated with the calculated Sample Statistic (F-statistic) for the data?
Q 9. For the calculated p-Value for the test of equal variances, is the assumption of unequal variances in Q1 a valid assumption? - assuming a Significance Level of 0.025
Plant A Plant B 226.8509 242.8559 257.7838 244.7623 244.1273 238.1385 235.6253 241.7661 243.0243 234.2485 241.6545 232.0855 221.9506 230.3259 262.5096 251.4377 261.6246 241.4513 249.7522 240.3449 250.9452 239.8066 251.7834 245.7085 229.037 227.3768 222.4252Explanation / Answer
2)df = 17
3) 3.973
4) 0.00049206
5)2.109815578
6) yes
Post rest questions again
t-Test: Two-Sample Assuming Unequal Variances Plant A Plant B Mean 245.635975 237.45138 Variance 164.5350682 63.09799996 Observations 12 15 Hypothesized Mean Difference 25 df 17 t Stat -3.97251113 P(T<=t) one-tail 0.00049206 t Critical one-tail 1.739606726 P(T<=t) two-tail 0.00098412 t Critical two-tail 2.109815578Related Questions
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