Amanufacturing process produces potato chip bags that have normally distributed weights, with a mean weight of 15 oz. and a standard deviation of .3 oz. what is the probability that 16 randomly selected bags have a mean weight that exceeds 15.2 oz?

Step-by-step explanation:

This a normal distribution. We need to calculate the Z score, and then with a Z-table, find the probability. We do that, using the mean, standard deviation and the value from the question 15.2 oz.

So, Z score:

Refer to the image attached. If we consult the z-table, we find that 0.6 belongs to a probability of 0.73. But, we need to find the probability of weight that exceeds 15.2 oz. So, we need to subtract the 0,73, from the total probability, which is one:

Just, remember that 0.73 belongs to a probability where the weight is less than 15.2, that's why we need to subtract.

Hence, the probability is 27%.

step-by-step explanation:

where is the questions

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.