Question

The average price of cell phones manuactured by Ahmadi, Inc. is 594 with a standard devation of s12. Furthermere, it is known that the prices of the cell phenes menufactured by A Amet we normally distributed, (You may need to vse the appropriate appendix table or technology to answer this question.)

(a) What percentege of cell phones produced by Ahmadi, Ine. will have prices of at least $114.407

Answer 1

To find the percentage of cell phones produced by Ahmadi, Inc. that will have prices of at least $114.407, we can use the z-score formula and the normal distribution table. The z-score formula allows us to calculate the z-score for a given value, which represents the number of standard deviations away from the mean. By referencing the z-score table, we can determine the percentage of prices that are above $114.407.

Step-by-step explanation:

To find the percentage of cell phones produced by Ahmadi, Inc. that will have prices of at least $114.407, we need to determine the area under the normal distribution curve that represents prices above this value. This can be done using the z-score formula.

The z-score formula is given by:

z = (x - μ) / σ

where z is the z-score, x is the value we want to find the percentage for, μ is the mean, and σ is the standard deviation.

Using the z-score table or a calculator, we can find the z-score corresponding to a value of $114.407 based on the given mean and standard deviation. Then, we can find the percentage using the z-score table or a calculator.