create a 95% confidence interval for the company quarterly revenue for Company A. Interpret the interval constructed.

Company A
Date	Revenue	SG&A
3/30/1990	198.3	33.4
6/29/1990	126.1	28.3
9/28/1990	152.2	31.6
12/31/1990	170.8	33.1
3/29/1991	215.7	37.7
6/28/1991	165.6	34.2
9/30/1991	193.6	36.7
12/31/1991	230.6	39.6
3/31/1992	339.9	51.7
6/30/1992	246.5	46.8
9/30/1992	285.4	49.5
12/31/1992	474.4	68.0
3/31/1993	613.6	83.8
6/30/1993	441.9	70.8
9/30/1993	563.0	81.1
12/31/1993	808.5	100.3
3/31/1994	1193.0	127.5
6/30/1994	849.4	107.3
9/30/1994	933.2	114.5
12/30/1994	1350.0	145.7
3/31/1995	1947.0	201.0
6/30/1995	1275.0	165.9
9/29/1995	1438.0	177.4
12/29/1995	1929.0	200.3
3/31/1996	2576.0	270.4
6/30/1996	1637.0	219.7
9/30/1996	1779.0	232.0
12/31/1996	2007.0	251.9
3/31/1997	2348.0	302.1
6/30/1997	1607.0	242.7
9/30/1997	1793.0	269.0
12/31/1997	2106.0	285.0
3/31/1998	2832.0	348.7
6/30/1998	1944.0	326.2
9/30/1998	2182.0	337.6
12/31/1998	2492.0	354.0
3/31/1999	3456.0	445.6
6/30/1999	2385.0	390.3
9/30/1999	2687.0	440.9
12/31/1999	3107.0	467.8
3/31/2000	4315.0	555.2
6/30/2000	2964.0	497.1
9/30/2000	3169.0	533.4
12/31/2000	3732.0	604.0
3/31/2001	5324.0	766.5
6/30/2001	3697.0	756.0
9/30/2001	4164.0	800.0
12/31/2001	4756.0	899.0
3/31/2002	5094.0	407.0
6/30/2002	4586.0	950.0
9/30/2002	5008.0	1026.0
12/31/2002	5131.0	1110.0
3/31/2003	6986.0	850.0
6/30/2003	4668.0	1071.0
9/30/2003	5396.0	1143.0
12/31/2003	6032.0	1284.0
3/31/2004	8449.0	1072.0
6/30/2004	5475.0	1205.0
9/30/2004	6080.0	1310.0
12/31/2004	6647.0	1310.0
3/31/2005	9227.0	1388.0
6/30/2005	6118.0	1319.0
9/30/2005	6702.0	1450.0
12/31/2005	7335.0	1599.0
3/31/2006	10690.0	1714.0
6/30/2006	6959.0	1428.0
9/30/2006	7603.0	1572.0
12/31/2006	8473.0	1799.0
3/31/2007	12900.0	1971.0
6/30/2007	7927.0	1626.0
9/30/2007	8750.0	1738.0
12/31/2007	9928.0	1986.0
3/31/2008	13420.0	2035.0
6/30/2008	8990.0	1856.0
9/30/2008	9801.0	2042.0
12/31/2008	11500.0	2587.0
3/31/2009	14720.0	2499.0
6/30/2009	10100.0	2209.0
9/30/2009	11020.0	2404.0
12/31/2009	12020.0	2566.0
3/31/2010	16100.0	2443.0
6/30/2010	10790.0	2480.0
9/30/2010	11340.0	2507.0
12/31/2010	11890.0	2598.0
3/31/2011	15730.0	2444.0
6/30/2011	10940.0	2484.0
9/30/2011	11350.0	2583.0
12/31/2011	12100.0	2616.0
3/31/2012	11070.0	1072.0
6/30/2012	11610.0	2518.0
9/30/2012	10550.0	2440.0
12/31/2012	9381.0	2192.0
3/31/2013	9347.0	1984.0
6/30/2013	9266.0	2038.0
9/30/2013	9327.0	2036.0
12/31/2013	12670.0	2048.0
3/31/2014	8639.0	1755.0
6/30/2014	8459.0	1748.0
9/30/2014	9032.0	1866.0
12/31/2014	14210.0	2223.0
3/31/2015	8558.0	1766.0
6/30/2015	8528.0	1811.0
9/30/2015	8819.0	1874.0
12/31/2015	13620.0	2167.0
3/31/2016	8443.0	1744.0
6/30/2016	8533.0	1773.0
9/30/2016	8945.0	1891.0
12/31/2016	13480.0	2149.0
3/31/2017	8528.0	1722.0
6/30/2017	8940.0	1830.0
9/30/2017	9320.0	1932.0