the critical value of chi-square is what when degrees of freedom equal 4 and a equals .05.?

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A:

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Q: b. 14-x²|dx

A: I am attaching image so that you understand each and every step.

Q: Is y significantly different from -0.5?

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Q: %3D 3. "Evaluate E (-1) nt2

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A: Given,

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A:

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.