A researcher is conducting & hypothesis test for a single mean. According to the Central Limit Theorem, if their sample size is at least 30, what will be the shape of the sampling distribution? O Approximately normal O Skewed to the right O Skewed to the left A statistician is constructing a confidence interval for a single proportion. Given that there are at least 10 successes and at least 10 failures in their sample, what will be the shape of their sampling distribution? O Approximately normal O Skewed to the left O Skewed to the right