Century Business Products tested 198 computers with 8-bit microcontrollers and found that 13 failed to perform...
Century Business Products tested 198 computers with 8-bit microcontrollers and found that 13 failed to perform adequately on a compliance test. The same test was applied to a sample of 57 32-bit CPUs and 13 of those failed.
a. State the decision rule for 0.05 significance level: H0: π8 ≥ π32;H1: π8 < π32. (Negative answer should be indicated by a minus sign. Round the final answer to 3 decimal places.)
Reject H0 if z < .
b. Compute the pooled proportion. (Round the final answer to 3 decimal places.)
pc =
c. Compute the value of the test statistic. (Negative answer should be indicated by a minus sign. Round the final answer to 3 decimal places.)
Value of the test statistic
Homework Answers
a)
Reject H0 if z < -1.645
b)
pooled proportion =-0.102
c)
value of the test statistic =-3.560 (try -3.561 or -3.600 if this comes wrong)
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Century Business Products tested 198 computers with 8-bit
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