Tourism Product Knowledge is regarding the general knowledge of all regions in Indonesia which includes the location of the region / geography, climate, history, politics, culture, and particularly object - attractions and facilities and attractions which support it. In this study, entitled Factors Affecting Total tourist arrivals in Sumut Province Year Period 2014 -2019. The purpose of this study was to determine the number of rooms and the dollar exchange rate partially and simultaneously inuence the number of tourist arrivals in Sumut, in order to obtain a result the number of hotel rooms inuential not evident partially on the number of tourists visiting the province of Sumut, because t smaller than t table or -1.651 <1.761 while the dollar exchange rate has a signicant effect on the number of tourists visiting the province of Sumut, because t is greater than t table or 2.236> 1.740 and Total Room and the US dollar exchange rate simultaneously or together of the number of tourists visiting Sumut Province since F count> F table or 13.288> 3.59. The magnitude of the effect of independent variables on the dependent variable simultaneously can be known from the value of the coefcient of determination (R2) is equal to 0.639. This means that both variables jointly contribute to or inuence amounted to 63.9 percent of the number of tourists visiting the province of Sumut, while the remaining 36.1 percent is inuenced by other variables that are not described in the model, such as safety, service, facilities.
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