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A population has a mean of 129. If a random sample of 8 items from the population results in the following sampled values, what is the sampling error for the sample
109 108 103 122 152 107 114 127
Explain what the standard error of the mean represents and does the sampling distribution of x look like a Normal distribution if n is 10?
Evaluate percentage of households in town with one or more cars; attach standard error to be evaluate. If this is no possible, describe why not.
30 students are female what would her confidence interval be if she requires the confidence level of 80%? Determine the point estimate (p) for percentage of engineering students that are female?
1.an experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield.
a local unemployment office keeps track of the number of new claims filed each day. based on data collected it
a random sample of 225 sat scores has a mean of 1500. assume that sat scores have a population standard deviation of
CCI is unable to adjust the mean of the filling process. However, it is able to adjust the standard deviation of the filling process.
Find E(X). (Note that when a bet is won, the $1 that was bet is returned to the bettor in addition to the $1, $2, or $3 that is won, but the returned dollar does not count as part of the winnings.)
In a large section of statistics class, the points for the final exams are normally distributed with a mean of 72 and a standard deviation of 9. Grades are to be assigned according to the following rule.
Simulate the arrival of cars at the service station for 20 arrivals and compute the average time between stations and Simulate the arrival of the cars at the service station for 1 hour
If we are dealing with non-normal data we use Chebychev's Theorem. While not as precise, it does provide some level of utility. If we use Chebychev
Identify the types of processes and analyses used in HR that use data analysis and evaluation. Discuss generally how statistics can be used in hiring, turnover, performance management, training, culture assessments, and other dashboard indicators ..
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