6 ft 10 in + 8 ft 9 in = 15 ft 7 in
add the inches first and then subtract 12 from the 19 because 12 inches equals 1 foot then add 6+8+1=15 ft don't forget to include the 7 inches in your answer
D=M/V. You just multiply both sides by D to get DV=M, then divide V by both sides.
Complete Question
A random sample of 300 circuits generated 13 defectives. a. Use the data to test

Versus

Use α = 0.05. Find the P-value for the test
Answer:
The p-value is
Step-by-step explanation:
From the question we are told that
The sample size is n = 300
The number of defective circuits is k = 13
Generally the sample proportion of defective circuits is mathematically represented as

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=> 
Generally the standard Error is mathematically represented as

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Generally the test statistics is mathematically represented as

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From the z table the area under the normal curve to the left corresponding to -0.5317 is

Generally the p-value is mathematically represented as

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I’m pretty sure the power is 4