​If, in a sample of n=20 selected from a normal​ population, X=55 and S=20​, what are the critical values of t if the level of​ significance, α​, is 0.05​, the null​ hypothesis, H0​, is μ=50, and the alternative​ hypothesis, H1, is μ≠50?     The critical values of t are ± _______. ​(Round to four decimal places as​ needed.)

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​If, in a sample of n=20 selected from a normal​ population,
X=55 and S=20​, what are the critical values of t if the level of​ significance, α​, is 0.05​, the null​ hypothesis, H0​, is μ=50, and the alternative​ hypothesis, H1, is μ≠50?
 
 
The critical values of t are ± _______.
​(Round to four decimal places as​ needed.)
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