Finding the range and median

Reference no: EM1322876

Q1) point averages(GPA) for 12 randomly chosen college students are shown on right. Suppose population is normally distributed.

2.4	3.5	2.9
1.9	0.8	4.0
2.3	1.5	3.7
0.2	2.2	3.2

i) Determine the sample mean.

ii) Determine the sample standard deviation

ii) Create a 95% confidence interval for population mean µ.

95% confidence interval for population mean is

Q2) Using data table given below, find out the range and median?

$110	$200	$190	$175
$120	$120	$190	$100
$180	$100	$170	$145
$95	$185	$100	$210
$135	$195	$240	$120

a) $95 to $210

b) $145

c) $95

d) $115

Reference no: EM1322876

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