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STUN. Herwinyes 8C3/8C4 Elementary Statistics laps Elvira Jinadu & I 07/30/20 11:31 PM Homework: Section 6.2...

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STUN. Herwinyes 8C3/8C4 Elementary Statistics laps Elvira Jinadu & I 07/30/20 11:31 PM Homework: Section 6.2...

STUN. Herwinyes 8C3/8C4 Elementary Statistics laps Elvira Jinadu & I 07/30/20 11:31 PM Homework: Section 6.2 Homework y Save stics Score: 0 of 1 pt 8 of 7 (5 complete) HW Score: 17.14%, 1.2 of 7 pts 6.2.25-T Question Help 987 The state test scores for 12 randomly selected high school seniors are shown on the right. Complete parts (a) through (c) below. Assume the population is normally distributed 1429 693 1222 723 741 1446 728 838 549 949 626 (a) Find the sample mean. x = 910.9 (Round to one decimal place as needed.) (b) Find the sample standard deviation S = 304.7. (Round to one decimal place as needed.) (c) Construct a 90% confidence interval for the population mean A 90% confidence interval for the population mean is (0) (Round to one decimal place as needed.) Enter your answer in the edit fields and then click Check Answer All parts showing Clear All Check Answer
Homework: Section 6.2 Homework tar You Save Score: 0 of 1 pt 7 of 7 (6 complete) HW Score: 20.71%, 1.45 of 7 p 6.2.26-T Question Help 3.3 The grade point averages (GPA) for 12 randomly selected college students are shown on the right. Complete parts (a) through (c) 2.5 below. 1.6 Assume the population is normally distributed. 2.5 0.3 0.6 1.2 2.3 2.70 4.0 3.7 3.2 (a) Find the sample mean x 2.33 (Round to two decimal places as needed.) (b) Find the sample standard deviation s- 1.19 (Round to two decimal places as needed.) (c) Construct a 10% confidence interval for the population mean . A 90% confidence interval for the population mean is ( (Round to two decimal places as needed.) Enter your answer in the edit fields and then click Check Answer, All parts showing Clear All Check Answer

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