17-6: A recent trade newsletter reported that during the initial 6-month period of employment, new sales...

17-6: A recent trade newsletter reported that during the initial 6-month period of employment, new sales personnel in an insurance company spent a median of 119 hours per month in the field. A random sample of 20 new salespersons was selected. The number of hours spent in the field by members in a randomly chosen moth are listed here:

163 103 112 96 134

147 102 95 134 126

189 126 135 114 129

142 111 103 89 115

Do the data support the trade newsletter’s claim? Conduct the appropriate hypothesis test with a significance level of 0.05.

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