The table below shows the weights of seven subjects before and after following a particular diet for two months.

Subject / A / B / C / D / E / F / G Before / 154 / 152 / 151 / 154 / 155 / 151 / 154 After / 150 / 152 / 154 / 155 / 155 / 153 / 150

Using a 0.10 level of significance, test the claim that the diet is not effective in reducing weight (after minus before is not negative). Use the critical value method of hypothesis testing.

Enter the smallest critical value. (Round your answer to nearest thousandth.)