Suppose we have a sample of 11 elephant weights. If we construct a 95% confidence interval for the population mean elephant weight, which of the following statements is correct? The null distribution is the Z distribution. If another sample found a larger mean elephant weight, the width of the confidence interval would increase. If we repeated this with a new sample with greater variance, the width of the 95% confidence interval would not change. We would expect a 99% confidence interval to have a smaller width. If the hypothesised value under the null hypothesis is outside the confidence interval, we would reject the null hypothesis.