boints cach V Ns the size of the tw deviations are kep ne tu



boints cach (V) Ns the size of the tw deviations are kep ne, tue size of the twe samples insso increase rese given the variable standard deviations then the width A tescancher conducted a hypt (T) 05A researcher -R2) will also increase. of the 95% CI for U ge perform better tesearcher conducted a hypothesis test Uven i in acted a hyporhesis test to see if students on avera ing than exams given in the afternoon. The P value hased on an Drcedure is 001. This means that it is rare to observe curent test statistics cedure is 0.01. This iocans tht i is rare to serve curent est statistics i hypothesis at a 0.05 He is is truc. As a result, we sucpessful nducted using a paired design, but thut the pairing is ignored sample (T)(F)SupposethEastudy is Suppose thar a tudty is conducted using a paired design, ut te theiysing is ignored be smaller than paired the analysis of the d The width of confidence inserval woukd be sial confidence interval sa same level of confidence.

Solution

1)

False :

Larger samples result in smaller standard errors, and therefore, in sampling distributions that are more clustered around the population mean. A more closely clustered sampling distribution indicates that our confidence intervals will be narrower and more precise.

2)

True

As P-value (0.01) < 0.05

Reject null hypothesis.

3)

False

When the data are paired there will be less outliers , hence confidence interval will be more compact.

 boints cach (V) Ns the size of the tw deviations are kep ne, tue size of the twe samples insso increase rese given the variable standard deviations then the wi

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