Discussion:
Q: The sales data provides data on a sample of customers. An industry trade publication states that the average profit per customer for this industry was $4500. Using a test of this hypothesis, can this company claim that they are meeting the standard? Can this company claim that they are exceeding the standard?
| Customer |
Percent Gross Profit |
2008 Sales |
$ Profit |
Industry Code |
Competitive Rating |
| 1 |
51.0% |
$170.00 |
$86.70 |
1 |
2 |
| 2 |
32.0% |
$181.00 |
$57.92 |
3 |
4 |
| 3 |
20.0% |
$203.00 |
$40.60 |
2 |
2 |
| 4 |
22.0% |
$249.00 |
$54.78 |
5 |
1 |
| 5 |
21.0% |
$476.00 |
$99.96 |
5 |
1 |
| 6 |
21.0% |
$476.00 |
$99.96 |
5 |
4 |
| 7 |
22.0% |
$635.00 |
$139.70 |
2 |
3 |
| 8 |
34.0% |
$856.00 |
$291.04 |
3 |
3 |
| 9 |
26.0% |
$1,062.00 |
$276.12 |
4 |
2 |
| 10 |
16.6% |
$1,110.00 |
$183.71 |
7 |
3 |
| 11 |
20.0% |
$1,153.00 |
$230.60 |
7 |
3 |
| 12 |
36.0% |
$1,392.00 |
$501.12 |
4 |
2 |
| 13 |
18.0% |
$1,743.00 |
$313.74 |
4 |
2 |
| 14 |
20.0% |
$2,307.00 |
$461.40 |
7 |
3 |
| 15 |
5.0% |
$2,534.00 |
$126.70 |
4 |
5 |
| 16 |
29.0% |
$2,683.00 |
$778.07 |
7 |
2 |
| 17 |
10.0% |
$2,780.00 |
$278.00 |
2 |
3 |
| 18 |
37.0% |
$3,272.00 |
$1,210.64 |
5 |
3 |
| 19 |
60.0% |
$3,864.00 |
$2,318.40 |
7 |
1 |
| 20 |
24.0% |
$3,988.00 |
$957.12 |
6 |
3 |
| 21 |
9.0% |
$4,072.00 |
$366.48 |
7 |
3 |
| 22 |
50.0% |
$4,190.00 |
$2,095.00 |
5 |
3 |
| 23 |
17.0% |
$4,219.00 |
$717.23 |
3 |
4 |
| 24 |
32.0% |
$4,711.00 |
$1,507.52 |
7 |
1 |
| 25 |
15.0% |
$4,824.00 |
$723.60 |
6 |
3 |
| 26 |
10.0% |
$4,878.00 |
$487.80 |
7 |
4 |
| 27 |
13.0% |
$5,157.00 |
$670.41 |
7 |
2 |
| 28 |
22.0% |
$5,552.00 |
$1,221.44 |
2 |
3 |
| 29 |
17.0% |
$5,876.00 |
$998.92 |
1 |
3 |
| 30 |
19.0% |
$5,888.00 |
$1,118.72 |
6 |
4 |
| 31 |
6.0% |
$7,632.00 |
$457.92 |
5 |
4 |
| 32 |
23.0% |
$8,058.00 |
$1,853.34 |
3 |
3 |
| 33 |
23.0% |
$12,056.00 |
$2,772.88 |
7 |
2 |
| 34 |
14.0% |
$12,981.00 |
$1,817.34 |
2 |
4 |
| 35 |
22.0% |
$13,406.00 |
$2,949.32 |
2 |
3 |
| 36 |
14.0% |
$15,882.00 |
$2,223.48 |
7 |
3 |
| 37 |
28.0% |
$16,343.00 |
$4,576.04 |
3 |
3 |
| 38 |
27.0% |
$19,985.00 |
$5,395.95 |
5 |
3 |
| 39 |
3.0% |
$20,160.00 |
$604.80 |
5 |
5 |
| 40 |
46.0% |
$26,616.00 |
$12,243.36 |
5 |
2 |
| 41 |
26.0% |
$28,018.00 |
$7,284.68 |
5 |
3 |
| 42 |
11.0% |
$28,950.00 |
$3,184.50 |
4 |
4 |
| 43 |
18.0% |
$29,646.00 |
$5,336.28 |
4 |
3 |
| 44 |
37.0% |
$31,019.00 |
$11,477.03 |
6 |
1 |
| 45 |
20.0% |
$31,305.00 |
$6,261.00 |
2 |
3 |
| 46 |
21.0% |
$34,769.00 |
$7,301.49 |
7 |
1 |
| 47 |
10.0% |
$34,817.00 |
$3,481.70 |
4 |
3 |
| 48 |
14.0% |
$38,609.00 |
$5,405.26 |
1 |
3 |
| 49 |
9.0% |
$38,923.00 |
$3,503.07 |
2 |
5 |
| 50 |
16.0% |
$40,536.00 |
$6,485.76 |
4 |
3 |
| 51 |
22.0% |
$54,851.00 |
$12,067.22 |
6 |
2 |
| 52 |
21.0% |
$54,861.00 |
$11,520.81 |
7 |
2 |
| 53 |
17.0% |
$58,063.00 |
$9,870.71 |
5 |
4 |
| 54 |
11.0% |
$62,862.00 |
$6,914.82 |
4 |
5 |
| 55 |
7.0% |
$78,574.00 |
$5,500.18 |
3 |
5 |
| 56 |
14.0% |
$92,776.00 |
$12,988.64 |
4 |
3 |
| 57 |
15.0% |
$112,837.00 |
$16,925.55 |
1 |
4 |
| 58 |
13.0% |
$115,999.00 |
$15,079.87 |
4 |
5 |
| 59 |
21.0% |
$120,854.00 |
$25,379.34 |
5 |
4 |
| 60 |
14.0% |
$179,101.00 |
$25,074.14 |
6 |
3 |