Math 534 homework - Study guides, Class notes & Summaries

1. Question: Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is the z-value for a score of 80? 2. Question: Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is the probability of obtaining a score less than 80? 3. Question: Which one of the following is not a characteristic of a normal distribution? 4. Question: If the z-value of a given x value is positive, it means that ___________. 5. Question: As...

MATH 534 Week 1 Homework Problems

MATH 534 Week 2 Homework Problems

1. Question: If the occurrence or non occurrence of one event does not affect the occurrence or non occurrence of another event, the two events are ___________ . 2. Question: In any statistical experiment if the occurrence of one event precludes the occurrence of the other events, the events of the experiment are called _______ . 3. Question: In the experiment of a single roll of a 6-faced die, if the outcome “3 shows up” is called event A and the outcome “4 shows up” is called event B...

1. Question: Suppose you are an operations manager for a plant that manufactures batteries. Give an example of how you could use descriptive statistics to make better managerial decisions. Give an example of how you could use inferential statistics to make better managerial decisions.Say whether this or that example describes the use of descriptive or inferential statistics. 2. Question: Classify each of the following as nominal, ordinal, interval, or ratio data. 3. Question: For the following...

MATH 534 Week 2 Addendum: Homework-Quiz ReviewMMATH 534 Week 2 Addendum: Homework-Quiz ReviewMATH 534 Week 2 Addendum: Homework-Quiz ReviewATH 534 Week 2 Addendum: Homework-Quiz Review

MATH534WEEK1HOMEWORK Supposeyouareanoperationsmanagerforaplantthatmanufacturesbatteries.Giveanexampleofhowyoucouldusedescriptivestatisticsto make better managerial decisions. Give an example of how youcoulduseinferentialstatisticsto makebetter managerialdecisions.

1. Question: You can skip #16 in the homework and #9 and #10 in the quiz. Everyone will be given credit. The problems look something like this: 2. Question: Review definitions and concepts in the notes. 3. Question: We are developing a regression model to predict weight as function of height. a. What is the explanatory variable (independent variable)? b. What is the response variable (dependent variable)? 4. Question: In the following regression: ŷ = 27.7 + 3.25x a. What is the slope?...