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In 2007 American golfer tiger woods competed in 26 PGA golf tournament. He completed 1st seven times, 2nd three times, and one time each in 6th, 9th,12th, 15th, 22nd and 37t. Determine his median finishing position for the year. (Suppose that finishing position is discrete variable).
The following frequency table determine the ages of 100 shoppers at the local grocery store. Compute the sample mean for this data (mean for the grouped data).
An investor wants to assess at confidence level of 98% if a medicament can improve the marks of students. He notices that for the following daily dozes: 2,2.5,3,4.5,7 mg, the improvement over the students that studied the same but took no mental b..
The following is a time series data set. Run a time-series analysis for projections of April 2009 in the Healthcare industry of Nashville.
Does this sample indicate a smaller average? Use α = 0.05 and assume a normally distributed population.
We want to estimate the population mean within 5, with a 99% confidence level. The population std dev is estimated to be 15. How large is the required sample size?
Help with showing how do detrime the standard deviation of a problem when the standard deviation is 5. An example would help me to work out a problem for the normal probability distribution.
A student is taking a multiple choice exam in which each question has four choices . Assume that the student has knowledge of a correct answer to any of the questions.
what size sample should the director choose if she wishes to estimate the mean number of admissions per 24-hour period to within 1 admission with 99 percent reliability.
What is the value of the slope of the least squares regression line for these data? Round your answer to at least four decimal places.
Calculate the 95% confidence interval for the rate of positive tuberculin reaction separately for each of the two subpopulation, those with high exposure and those with low exposure.
An instructor claims the average time to take a statistics test is greater than 39 min. As, if a sample of 33 students took 43 min. is the instructor's claim true?
Assume that the weights of coconuts are normally distributed with a mean weight of 17.6 pounds and a standard deviation of 1.2 pounds.
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