05 astudy has shown that 20 of all college textbooks have price of s250 or higher itis known tha

Name: 05 astudy has shown that 20 of all college textbooks have price of s250 or higher itis known that ihe sandard deviation of prices of all college textbooks is s50 assume prices of all college 97557
Uploaded: 2023-06-15T13:11:30-08:00
Duration: 1 min 44 s
Channel: Numerade
Description: 05 astudy has shown that 20 of all college textbooks have price of s250 or higher itis known that ihe sandard deviation of prices of all college textbooks is s50 assume prices of all college 97557

Question

Shaiju T · Answer

Hello student. So in this question we have given x equals to 184 .52 and row equals to 36 .35. S

Christopher Dzorkpata · Answer

Hello. So this is the given information. We want to find the mean price. So our equation we&#x27;re g

Narayan Hari · Answer

In this problem, I can write a formula as z is equal to x minus mu by sigma n01 given that is st

Pritesh Ranjan · Answer

In this problem, we are given that there&#x27;s a local college and for a semester the average cost o

Madhur L · Answer

Hello students here we have given the mean of the normal distribution that is mu is equal to 368

Question

05. A study has shown that 20% of all college textbooks have a price of $250 or higher. It is known that the standard deviation of prices of all college textbooks is $50. Assume prices of all college textbooks follow a normal distribution. What is the mean price of all college textbooks?

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