Score: 3.5/11 Answered: 2/7 am Proctor Question 3 · ments Progress saved Done 1.5/2 pts 298 Details Quick note for Excel users: Excel analyzes using first variable minus second variable. If need help, watch the video at the bottom. Testing a claim about a population mean: t-Test An overly involved "neighborhood watch" group has been investigating the length of lawns. In years past, lawns had been mowed to a mean length of 2.5 inches. A recent random sample of lawn lengths is given below. Conduct an appropriate test, at a 5% significance level, to determine if the overall mean lawn length is now higher than 2.5 inches. Graded Anonymously: no Comments No Comments Sources Data (lawn lengths, measured in inches): esources 2.32 4.30 2.31 3.75 4.60 2.77 4.01 2.87 5.01 3.01 2.46 4.52 3.62 2.98 3.58 3.07 5.04 3.91 2.92 3.99 Checksum: 71.04 Click Download CSV to download csv file of data or copy/paste the data into Excel. After downloading the file, you may want to save it as an Excel Workbook.…

Need correct solution for this Statistics question.

The marks of five students are 20, 25, 30, 35, and 40. Find the mean and standard deviation.