A lathe is set to cut steel bars and considered to be in perfect adjustment if the average length of the bars it cuts is 7 cm. A sample of 31 bars is selected randomly and the length are measured. It is determined that the average length of the bars in the sample is 7. 055 cm with a standard deviation of 0. 35 cm. Find a 97% confidence interval that the average length of the bars is in perfect adjustment.

Which of the following best describes the difference between “autobiography” and “memoir”? a. autobiography is written about the author's own interpretation of events; memoir is a written interpretation of events. b. memoir covers a particular time in the writer’s life or recounts life events around one or two themes; autobiography covers the entire story of the author's life and has multiple themes. c. autobiography covers the entire story of the writer's life and has multiple themes; memoir is a shorter written work with one theme. d. autobiography covers entire story of the writer's life and has multiple themes; memoir is the writer’s random memories about past experiences.

Will give brainliest to whoever !! what are some similarities and differences between the dongzhi festival (winter solstice) and christmas?

At work claire has a deadline that is rapidly approaching. as she works, she finds that she is doing more work in a shorter amount of time than usual. she thinks mor quickly, and her senses and memory are sharper. what is responsible for claire working more effectively?