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Construct Statistic Form: make editing documents online simple

Most of the users has ever needed to edit a PDF document. For example, an application form or affidavit that you need to fill out online. Thanks to PDF editing tools, you will be sure that information in your document is 100% correct before forwarding it to others. If you want to edit the text, add image or more fillable fields, just open a PDF editor.

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Identify a sample statistic. Choose the statistic (e.g, sample mean, sample proportion) that you will use to estimate a population parameter. Select a confidence level. Find the margin of error. Specify the confidence interval.
To calculate the confidence interval, we must find p, q. p = 0.842 is the sample proportion. This is the point estimate of the population proportion. Since the requested confidence level is CL = 0.95, then = 1 CL = 1 0.95 = 0.05 (2) = 0.025.
In general, you compute the 95% confidence interval for the mean with the following formula: Lower limit = M — Z.95M. Upper limit = M + Z.95M. Where Z.95 is the number of standard deviations extending from the mean of a normal distribution required to contain 0.95 of the area and M is the standard error of the mean.
Determine the confidence level and find the appropriate z*-value. Refer to the above table. Find the sample mean. For the sample size (n). Multiply z* times. And divide that by the square root of n. Take.

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