cassidy32504

03.12.2019 • 

Mathematics

Assume that all grade-point averages are to be standardized on a scale between 0 and 5. how many grade-point averages must be obtained so that the sample mean is within 0.007 of the population mean? assume that a 95% confidence level is desired. if using the range rule of thumb, sigma can be estimated as startfraction range over 4 endfraction equalsstartfraction 5 minus 0 over 4 endfraction equals1.25. does the sample size seem practical? explain why?

Ответ:

KaleahV

25.04.2023

Mathematics

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ΔJKL is similar to ΔPML

⇒ JK/PM = JL/PL

.

Solve x:

x/12 = 4/6

6x = 48

x = 8

.

x = 8

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