The Gidget Company makes widgets. If the production process is working properly, it turns out that the widgets are normally distributed with a mean length of at least 3.43.4 feet. Larger widgets can be used or altered but shorter widgets must be scrapped. You select a sample of 25 widgets, and the mean length is 3.38 feet and the sample standard deviation is 0.21 foot. Do you need to adjust the production​equipment? If you test the null hypothesis at the 0.05 level of​significance, what decision do you make using the critical value approach to hypothesis testing, what is the null and alternative null for this test? What is the test statistic?