Suppose a large shipment of telephones contained 21% defectives. If a sample of size 498 is selected, what is the probability th
at the sample proportion will differ from the population proportion by less than 3%
1 answer:
Answer:

Step-by-step explanation:
Given


Required

First, we calculate the z score






So:


From z probability, we have:

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Step-by-step explanation:
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56
Step-by-step explanation:
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The ones place value is four
Answer:
9
Step-by-step explanation:
a²+b
Substituting values,
=> (-2)^2+5
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Answer:10th place
Step-by-step explanation: