probability is about .95 that the 95% confidence interval will include the true population parameter. On the other hand, 2.5% of the time the highest value in the confidence interval will be smaller than the true value, while 2.5% of the time the smallest value in the confidence interval will be greater than the true value.
Just remember, low prices sell more quickly. When in doubt, go back to Step 1 and remind yourself WHY you are having a garage sale. Then, proceed with your pricing.Items sold for $1 sell much faster than those sold for $5 or more. For the best results, keep your prices in the $1 to $2 range.
1 The website Homewyse.com states that the national average cost to paint a garage floor runs between $1.61 and $2.42 per square foot. 2  The said site also gives some quotes based on the clientsâ location and garage floor size. With the said price list, you can simply calculate all the overall floor size of your garage and add up all the expenses. 2  The website Homewyse.com states that the national average cost to paint a garage floor runs between $1.61 and $2.42 per square foot.