Chapter 06, Section 6.4, Problem 043 A study has shown that 23% of all college textbooks have a price of $90 or higher. It is known that the standard deviation of the prices of all college textbooks...

Extracted text: Chapter 06, Section 6.4, Problem 043 A study has shown that 23% of all college textbooks have a price of $90 or higher. It is known that the standard deviation of the prices of all college textbooks is $7.00. suppose the prices of all college textbooks have a normal distribution. What is the mean price of all college textbooks? Round your answer to the nearest integer. u =l