The state test scores for 12 randomly selected high school seniors are shown on the right. Complete parts (a) through (c) below. 1430 1230 985 699 730 834 Assume the population is normally distributed. 725 748 548 624 1443 945 (a) Find the sample mean. x= 911.8 (Round to one decimal place as needed.) (b) Find the sample standard deviation. s= 304 5 (Round to one decimal place as needed.) (c) Construct a 95% confidence interval for the population mean u A 95% confidence interval for the population mean is ( D (Round to one decimal place as needed.)

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The state test scores for 12 randomly selected high school seniors are shown on the right. Complete parts (a)
through (c) below.
1430
1230
985
699
730
834
Assume the population is normally distributed.
725
748
548
Courses
624
1443
945
se Home
(a) Find the sample mean.
nments
x- 911.8 (Round to one decimal place as needed.)
(b) Find the sample standard deviation.
debook
s= 304.5 (Round to one decimal place as needed.)
pter Contents
(c) Construct a 95% confidence interval for the population mean p.
A 95% confidence interval for the population mean is ( ).
(Round to one decimal place as needed.)
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Transcribed Image Text:The state test scores for 12 randomly selected high school seniors are shown on the right. Complete parts (a) through (c) below. 1430 1230 985 699 730 834 Assume the population is normally distributed. 725 748 548 Courses 624 1443 945 se Home (a) Find the sample mean. nments x- 911.8 (Round to one decimal place as needed.) (b) Find the sample standard deviation. debook s= 304.5 (Round to one decimal place as needed.) pter Contents (c) Construct a 95% confidence interval for the population mean p. A 95% confidence interval for the population mean is ( ). (Round to one decimal place as needed.) itimedia Library dy Plan pls for Success cessible Resources Clear all Check answer lls for Success View an example Get more help- Media - Help me solve this PPearson 3:06 PM 53°F 12/1/2021 7. Type here to search 7500 1005/17 Delete PrtSc Insert F10 F11 F12 F6 Mum Lock Backspace 山
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