Two industrial processes are being investigated to see ifthere is a difference b

Question

Two industrial processes are being investigated to see ifthere is a difference between them in producing defective items. Inprocess A, out of 8,000 items produced, 26 were defective. Inprocess B, out of 6,000 items produced, 27 were found to bedefective. Does management have any reason to suspect process B?Explain in full, and find the P-value. Two industrial processes are being investigated to see ifthere is a difference between them in producing defective items. Inprocess A, out of 8,000 items produced, 26 were defective. Inprocess B, out of 6,000 items produced, 27 were found to bedefective. Does management have any reason to suspect process B?Explain in full, and find the P-value.

Explanation / Answer

Sample  X    N         Sampleproportion
    1       26 8000             0.003250
    2       27 6000             0.004500
Difference = p (1) - p (2)
Estimate for difference: -0.00125
95% CI for difference: (-0.00335325, 0.000853247)
Test for difference = 0 (vs not = 0): Z = -1.16 P-Value= 0.244
hope this will helps you

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