Question

In: Statistics and Probability

Please Answer the following with as much detail as possible. Thanks! What does a p-value indicate?...

Please Answer the following with as much detail as possible. Thanks!

  1. What does a p-value indicate?

  1. How does the standard deviation differ from the standard error? (Hint: Don't just describe the difference in the formulas, explain why the formulas are different)

  1. How do you know if the results of a sample can be generalized to the entire population?

Solutions

Expert Solution

SOLUTION:-

  1. What does a p-value indicate?
  • When you play out a theory test in insights, a p-esteem encourages you decide the critical ness of your outcomes.
  • Theory tests are utilized to test the legitimacy of a case that is made about a populace. This case that is on preliminary, generally, is known as the invalid speculation.
  • The elective speculation is the one you would accept if the invalid theory is finished up to be false. The proof in the preliminary is your information and the measurements that accompany it.
  • All speculation tests at last utilize a p-worth to gauge the quality of the proof (what the information are educating you regarding the populace). The p-esteem is a number somewhere in the range of 0 and 1 and deciphered in the accompanying manner:
  • A little p-esteem (regularly ≤ 0.05) demonstrates solid proof against the invalid speculation, so you dismiss the invalid theory.
  • An enormous p-esteem (> 0.05) demonstrates powerless proof against the invalid theory, so you neglect to dismiss the invalid speculation.
  • p-values near the cutoff (0.05) are viewed as negligible (could go in any case). Continuously report the p-esteem so your perusers can make their own determinations.

2).How does the standard deviation differ from the standard error?

Standard deviation Standard Error

That measures the dispersion of a data set relative to its mean and is calculated as the square root of the variance.

The standard error of a statistic means the standard deviation of the distribution or an estimate of that standard deviation. If the parameter or the statistic is the mean, it is known as standard error of the mean.

3).How do you know if the results of a sample can be generalized to the entire population?

  • Making decisions about an a lot more extensive populace than your example really speaks to is one of the greatest no-no's in measurements.
  • This sort of issue is called speculation, and it happens more regularly than you may might suspect.
  • Individuals need their outcomes immediately; they would prefer not to hang tight for them, so well-arranged overviews and analyses take a secondary lounge to moment Web reviews and accommodation tests.

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