You have two suppliers for electrical components. The first supplier has sent you 57 parts, of...

You have two suppliers for electrical components. The first supplier has sent you 57 parts, of which 5 have failed. The second supplier has sent you 64 parts, of which 8 have failed. Test the proportion of failures to see if the suppliers are equal in failure rate. Don’t use a significance level, instead report a p-value and give an interpretation of that result.

Solutions

Expert Solution

Let denotes the proportion of failed parts from first supplier and second supplier respectively.

Since P-value = 0.5040 which is a quite significantly high value in terms of probability, so we can conclude the the failure rates are not significantly different for two suppliers.

orchestra answered 1 year ago

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