Additional Information and Full Hypothesis Test Examples · Exercise 47
Hypothesis testing: For the following 10 exercises, answer each question.
A recent survey in the New York Times Almanac indicated that 48.8 percent of families own stock. A broker wanted to determine if this survey could be valid. He surveyed a random sample of 250 families and found that 142 owned some type of stock. At the 0.05 significance level, can the survey be considered to be accurate?
OpenStax, Statistics · §9.5 Additional Information and Full Hypothesis Test Examples · Exercise 47
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