Probability that randomly selected score exceeds given value
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Finding a Sample Size ? Use the given margin of error, confidence level, and population standard deviation to find the minimum sample size required to estimate an unknown population mean µ.
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In a poll of 1084 adults, it was found that 22% smoked cigarettes in the past week. Use 0.05 nificance level to test claim that less than 25% of adults smoked within past week. What is the test statistic
If we assume a normal distribution with o=92 What is the 90th percentile score? What is the probability that a randomly selected score exceeds 1200?
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The Purchaser of the bags requires them to have a strength of at least 35 Ib/in2. Calculate the probability that bags produced from this paper will meet or exceed the specification.
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