Current Attempt in Progress We know that 61% of all adults are in favor of abolishing the sales tax and increasing the income tax. Suppose we take a random sample of 385 adults and obtain their opinions on the issue. Use the normal distribution calculator to calculate the p-value. Calculator z- : P( Z S z) = The probability that 225 or fewer of 385 adults will be in favor of abolishing the sales tax and increasing the income tax is approximately: e Textbook and Media