Question

# Use the one-standard-deviation x2x^{2}-test and the one-standard-deviation x^{2}-interval procedure to conduct the required hypothesis test and obtain

Confidence intervals

Use the one-standard-deviation x2$$\displaystyle{x}^{{{2}}}$$-test and the one-standard-deviation $$\displaystyle{x}^{{{2}}}$$-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval. s=3 and n=10.
a. $$\displaystyle{H}_{{{0}}}:\sigma={4},{H}_{{{3}}}:\sigma{<}{4},\alpha={0.05}$$.
b. 90% confidence interval

2021-05-15
a. Do not reject $$\displaystyle{H}_{{{0}}}$$
b. 2.188 to 4.936