Can You Check My Math On The Following Question The Average Price Of Homes Sold

Can you check my math on the following question

The average price of homes sold in the medium size city in Canada in the past year was $220,000. A random sample of 81 homes sold this year showed an average price of $210,000 with a sample standard deviation of $36,000. Determine whether there has been a significant decrease in the average price of homes.

Compute the test statistic

t = (220,000 – 210,000) – 0 / square 36,000/81 + 36,000/81

t = 10,000/29.814

t = 335.41289

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