A small brokerage firm wants to estimate the average daily sales (in dollars) of stock to their clients. The firm wants to be within $2500 of the actual average daily sales. To estimate the standard deviation the firm conducted a small pilot study and recorded the data below of theSample Size. How large a sample should the firm take if they want to be 93% confident of the result?

• Enter your answer in the blank below and include units.

$79.58	$121.18	$111.98	$89.44	$105.09	$162.85
$68.60	$156.45	$125.28	$180.14	$160.30	$169.46
$43.21	$140.91	$178.88	$77.10	$89.48	$64.06
$158.79	$54.51	$96.16	$61.45	$105.12	$140.26
$108.02	$129.73	$171.84	$76.74	$142.13	$137.61
$99.91	$107.97	$130.64	$137.52	$79.06	$85.79
$164.20	$129.75	$117.89	$98.21	$150.93	$0.04
$179.35	$33.92	$92.67	$141.16	$104.08	$65.62
$145.66	$155.40	$64.80	$120.00	$118.06	$105.90
$160.82	$100.36	$59.78	$170.75	$137.37	$95.52
$175.79	$150.17	$129.39	$135.03	$122.51	$133.15
$154.21	$210.70	$160.27	$118.34	$107.55	$126.39
$105.89	$84.10	$143.07	$25.76	$172.74	$141.59
$157.31	$185.91	$142.77	$95.19	$97.09	$115.52
$141.48	$128.23	$232.74	$168.23	$133.71	$216.96
$92.94	$107.66	$78.89	$129.28	$47.20	$135.53
$163.88	$66.14	$134.15	$92.90	$168.07	$86.57
$130.74	$123.22	$204.95	$118.09	$181.74	$38.48
$71.44	$198.34	$221.75	$128.37	$158.31	$66.17
$91.58	$140.73	$161.06	$100.36	$118.77	$127.96
$82.70	$132.85	$95.96	$124.16	$188.85	$66.04
$175.15	$94.11	$95.77	$138.32	$147.83	$77.65
$138.62	$118.85	$97.37	$152.01	$62.93	$109.45
$147.83	$207.64	$162.38	$149.25	$107.13	$67.65
$67.17	$149.84	$80.87	$168.49	$91.02	$160.27
$143.50	$110.53	$110.45	$139.97	$113.03	$162.27
$129.30	$149.36	$127.38	$116.60	$131.43	$196.24
$152.96	$77.92	$99.68	$164.16	$85.44	$186.82
$83.23	$196.20	$177.84	$183.02	$108.05	$164.46
$56.33	$36.27	$127.96	$22.99	$83.75	$90.35
$161.73	$72.69	$86.59	$142.68	$143.42	$175.07
$152.18	$189.16	$91.29	$125.87	$109.05	$164.96