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  

=>    

=>    

.bjbjk.b,j.l.

step-by-step explanation:

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0