Question: The approximate costs for a 30-second spot for various cable networks in a random selection of cities are shown below. Estimate the true population mean

The approximate costs for a 30-second spot for various cable networks in a random selection of cities are shown below. Estimate the true population mean cost for a 30- second advertisement on cable network with 90% confidence.

14 55 165 9 15 66 23 30 150

22 12 13 54 73 55 41 78

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