The trade volume of a stock is the number of shares traded on a given day. The data in the first accompanying table, in millions (so that 6.36 represents 6,360,000 shares traded), represent the volume of a certain stock traded for a random sample of 40 trading days in a certain year. A second random sample of 40 days in the
same year resulted in the data in second accompanying table. Complete parts (a) through (d) below.
Click here to view the data for the first sample.
Click here to view the data for the second sample.
(a) Use the data from the first sample to compute a point estimate for the population mean number of shares traded per day in the year.
A point estimate for the population mean number of shares traded per day in the year is million.
(Round to three decimal places as needed)
First Sample Volumes (millions of shares traded)
- X
0
3.84
6.52
6.36
3.24
3.16
5.66
3.74
4.20
8.82
3.94
3.58
3.78
6.22
4.60
3.34
3.00
4.06
5.96
2.90
5.54
9.34
5.34
2.94
2.94
5.76
2.36
4.00
3.46
4.62
3.32
6.12
4.04
3.28
2.92
4.62
6.04
3.56
1.68
5.68
3.62
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