formula in Excel to calculate two-sided t test?

how to do two sided t test with Excel

to calculate two-sided t test

write down the formula in Excel to calculate two-sided

We conduct a test for a mean with a two-sided alternative hypothesis using a t-test. There were 30 observations in the sample and the calculated test statistic was 2.36, what is the appropriate p-value?

You are analyzing data for a research project. You have a two-sided two-sample t-test with the following hypotheses being tested:H0: μ1 − μ2 = 0Ha: μ1 − μ2 ≠ 0Which of the following results for the confidence interval provides enough evidence to reject the null hypothesis? 95% confidence interval: (−3.853, −0.943) 95% confidence interval: (−0.285, 1.345