Title: If the underlying populations are normally distributed and both population variances are equal, the ... Post by: joshtatum92 on Feb 19, 2023 If the underlying populations are normally distributed and both population variances are equal, the test statistic \(\style{font-family:Times New Roman;}{\frac{{\overline X}_1-{\overline X}_2-\Delta_0}{S_p^2\sqrt{\frac1{n_1}+\frac1{n_2}}}}\) follows a: ▸ standard normal distribution if both samples are large. ▸ Student’stdistribution with\(\style{font-family:Times New Roman;}{n-1}\)degrees of freedom. ▸ standard normal distribution with\(\style{font-family:Times New Roman;}{n_1+n_2-2}\)degrees of freedom. ▸ Student’stdistribution with\(\style{font-family:Times New Roman;}{n_1+n_2-2}\)degrees of freedom. Title: Re: If the underlying populations are normally distributed and both population variances are equal, the ... Post by: billykra on Feb 19, 2023 Content hidden
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