Anonymous
Anonymous asked in Education & ReferenceHomework Help · 1 month ago

HW QUESTION ?

In an effort to cut costs and improve profits, many US companies have been turning to outsourcing. In fact, according to "Purchasing" magazine, 45% of companies outsourced some part of their manufacturing process in the past two to three years. You would like to verify this complaint, and surveyed 513 companies. Show your answer to 4 decimal places if necessary.

What is the probability that between 224 and 235 companies outsourced some part of their manufacturing process in the past two or three years?

WILL REWARD BEST ANSWER***

1 Answer

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  • alex
    Lv 7
    1 month ago

    Hint:

    The normal distribution can be used as an approximation to the binomial distribution

    with mean = np = 230.9

    variance=npq=127

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