Suppose a particular brand of energy bars has come up with a new recipe. They want to know how many energy bars they need to test for calorie content in order to be 94% confident that the sample mean will be within 3 calories of the true mean

Complete Question

Suppose a particular brand of energy bars has come up with a new recipe. They want to know how many energy bars they need to test for calorie content in order to be 94% confident that the sample mean will be within 3 calories of the true mean? Suppose there is a population standard deviation of 20 calories

The value is    

Step-by-step explanation:

From the question we are told that

The margin of error is  

  The standard deviation is  

From the question we are told the confidence level is  94% , hence the level of significance is    

=>   \

Generally from the normal distribution table the critical value  of   is  

Generally the sample size is mathematically represented as  

=>    

=>    

the answer is somewhere there guys it really . there im just not gonna answer

step-by-step explanation:

but i'm guessing ur first option tho

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify