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When calculating margin of error, why does it decrease as the sample size increases?
How large a sample should she take if she does not want the acceptance rate of the sample to deviate from that of the population by more than six percentage points? State your assumptions in computing the required sample size.
Once a Woman won $1 Million in scratch off game from a lottery. Some years later, she won $1 million in another scratch off game. What is the probability that an individual would win 1 million in both games if they bought one scratch off ticket fro..
Assume that the population average for adults is 6 hours and 57 minutes, or 6.95 hours of sleep per night, with a standard deviation of 2 hours.
One salesperson profiled in this book stated that he concentrates on the need fulfillment phase of the sales presentation.
How long would it take to estimate the % of entries having errors using a random sample big enough to get a margin of error less than 2%?
Tom works the night shift at a gas station on the edge of Champaign. One night he mixed 3 stale doughnuts in with 13 fresh doughnuts. That night 6 customers bought one doughnut each, selecting them at random. What is the probability that at least ..
please respond with your thoughtsopinions and use examples to support your answer on the two separate posts in at least
it is generally believed that electrical problems affect about 14 of new cars. an automobile mechanic conducts
If it costs $50 per hour to operate A and $30 per hour to operate B, determine how many hours per week to operate each machine to meet the production requirement at minimum machine cost.
Construct a histogram and interpret. Locate on your histogram x ± s, x ± 2s, and x ± 3s. Count the data points in each of the intervals x, x± s, x ± 2s, and x ± 3s. How do these counts compare with the empirical rule?
Compute the proportion p (hat) for your sample Show your computation. Find a 95% confidence interval for p. What is the margin of error in this confidence interval? What is the meaning of this interval with respect to your data and project?
a. Write the formula for the probability curve of x. b. Graph the probability curve of x.
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