### Justine works for an organization committed to raising money for Alzheimer’s research. From past experience, the organization knows that about 20% of all potential donors will agree to give something if contacted by phone. They also know that of all people donating, about 5% will give 100 dollars or more. On average, how many potential donors will she have to contact until she gets her first 100 dollars donor?

The main objective of this question is to find the number of calls in order to get a donation of 100 dollars from these calls. This question uses the

### Suppose you conduct a test and your p-value is equal to 0.93. What can you conclude?

Discard Null hypothesis at $alpha=0.05$ but retain at $alpha=0.10$. Discard Null hypothesis at $alpha=0.01$ but retain at $alpha=0.05$. Discard Null

### X~N(570, 103). Find the z-score corresponding to an observation of 470.

Find the corresponding score for the given observation and select the right one from the given options: a) 0.97 b) -0.97 c)  0.64 d) -0.97 The

### Simon is making wreaths to sell. He has 60 bows, 36 silk roses, and 48 silk carnations.

All wreaths have the same items, and he needs to put the same number of items in each. How many items will come in each wreath? The aim of the

### Find the area of the part of the plane as shown below that lies in the first octant.

5x + 4y + z =20 This article aims to find the area of the part of