Show transcribed image text 000 AT&T LTE 6:23 PM 64% ì„ mathxl.com We to MyADP Wheel of F Ims.ssc.ed… McGraw-H Homework Do Hom..Welcome t.. MTH 126-301, Fall 2017 Lisa Koscielski 12/1/17 6:23 PM Homework: Section 9.4 Homework Score: 0 of 6 pts 9.4.45 Save 4of6e3 complete) â–¼ Score: 22.5%, 7.88 of 35 pts Question Help Thirty GPAs from a randomly selected sample of statistics students at a college are linked below. Assume that the population distrbution is approximately Nonmal The technician in charge of reconds claimed that the population mean GPA for the whole college is 287 a. What is the sample mean? Is it higher or lower than the population mean of 2.87? b. The chair of the mathematics department claims that statistics students typically have higher GPAs than the typical college student. Use the four-step procedure and the data provided to test this claim Use a significance level of 0.0 Click the icon to view the data table. a. What is the sample mean? The sample mean is Type an inieger or decimal rounded to two decimal places as needed.) Student GPA Table 2.84 3.37 3.11 2.53 3.48 2.76 309 354 263 387 288 2.62 3.54 3,05 276 347 247 3.11 346 3.14 3.14 3.09 3.19 2.98 348 384 248 3.14 3.14 3.04 Print Done Enter your answer in the answer box and then click Check Answer Clear All Check Answer
000 AT&T LTE 6:23 PM 64% ì„ mathxl.com We to MyADP Wheel of F Ims.ssc.ed… McGraw-H Homework Do Hom..Welcome t.. MTH 126-301, Fall 2017 Lisa Koscielski 12/1/17 6:23 PM Homework: Section 9.4 Homework Score: 0 of 6 pts 9.4.45 Save 4of6e3 complete) â–¼ Score: 22.5%, 7.88 of 35 pts Question Help Thirty GPAs from a randomly selected sample of statistics students at a college are linked below. Assume that the population distrbution is approximately Nonmal The technician in charge of reconds claimed that the population mean GPA for the whole college is 287 a. What is the sample mean? Is it higher or lower than the population mean of 2.87? b. The chair of the mathematics department claims that statistics students typically have higher GPAs than the typical college student. Use the four-step procedure and the data provided to test this claim Use a significance level of 0.0 Click the icon to view the data table. a. What is the sample mean? The sample mean is Type an inieger or decimal rounded to two decimal places as needed.) Student GPA Table 2.84 3.37 3.11 2.53 3.48 2.76 309 354 263 387 288 2.62 3.54 3,05 276 347 247 3.11 346 3.14 3.14 3.09 3.19 2.98 348 384 248 3.14 3.14 3.04 Print Done Enter your answer in the answer box and then click Check Answer Clear All Check Answer
