6. National agency for real estate has made contract for rental of areas for production activities in 9 cities. Data for the advertised prices per square meter in EURO is available in the table below At risk of error a = 0.05 and a bilateral critical area, to determine whether the distribution of realized prices is close to the theoretical normal distribution. City Price Plovdiv Varna Pleven Dobrich Shumen Sliven 100 Sofia Burgas Ruse 250 220 210 200 190 160 120 110 per square meter in EURO

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Q: 4) /

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