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A television sports commentator wants to estimate the proportion of citizens who follow professional football. Complete parts (a) through (c) (a) What sample size should be obtained if he wants to be within 3 percentage points with 96% confidence if he uses an estimate of 54% obtained from a poll? The sample size is
Calculate (a) MAD, (b) MSE, and (c) MAPE for the following forecast versus actual sales figures.
What statistics test should I be using when I am assessing whether subjects were able to complete a task (i.e. Yes/No nominal data) before instructions, after instructions and then again after a demo
Let X be the random variable which denotes the number of saves that are made by the lacrosse goalie. Find the expected value and standard deviation of the random variable.
assume that the significance level is a0.05. use the given information to find the p value and the critical values.
Best Electronics, Inc. offers a "no hassle" returns policy. The number of items returned per day follows the normal distribution. The mean number of customer returns is 10.4 per day and the standard deviation is 2.3 per day.
a a student who waits for two buses every day records the status of the arrival of each bus. the bus is either late on
Let's work with a really idealized normal distribution. We'll pretend that American 12-year-old boys have an average (mean) weight of 100 lbs.
Each organization gets a 90% confidence interval. About how many of these intervals should cover the population average?
in a random sample of 40 felons convicted of aggarvated assault it was determined that the mean length of sentencing
a goldfish is swimming at 2.00 cms toward the front wall of a rectangular aquarium. what is the apparent speed of the
consider the recurrence relation an 2an ? 1 3n.a write the associated homogeneous recurrence relation.b find the
Construct a hypothesis test to determine whether the average weight of a Smoky Bear moving van is more that 12,000 lb. Us a 5% level of significance.
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