hey sis, please answer this question for me.

Question #1) The cheebles cookie factory changed their recipe.

The inspectors took a sample of the new cookies and found that the mean weight of the sample was 42 grams with a standard deviation of 4 grams. The cheebles CEO specifically asked the inspectors to use these statistics to find the lower and upper boundary weights of 50% of their cookies.

what are the Z values of the limits of the area covering the middle half of the area under the normal curve that the inspectors would use to find this information for the CEO of cheebles?

these are the multiple choice answers to this study question.

1) from 0 to 1.00

2) from -1.00 to 1.00

3) from -0. 674 to 0.674

4) from -0.680 to 0.680