In a random sample of six microwave ovens, the mean repair cost was $80.00 and the standard deviation was $11.00. assume the population is normally distributed and use a t-distribution to construct a 90% confidence interval for the population mean mμ. what is the margin of error of mμ? interpret the results.

E=14.1641

Step-by-step explanation:

We have given that

Assuming a confidence interval of 95% for \mu we have that,

Where is Margin of error given by,

For 95% in the T-Table we have that , so

So our Margin of error (E) is 14.1641

idk

step-by-step explanation:

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.