# college stats

posted by .

Again sorry for all the questions. please help, I am not good at stats and find these questions very difficult. I would appreciate an explanation if possible.

1.What is the sample average?
2.What is the SD of the box?
3.What is the number of draws from the box (the sample size)?
4.What is the standard error for the average? Round your answer to two decimal places.
5.What is the z-value for a 85% confidence interval? Round your answer to two decimal places.
6.What is the lower boundary of the 85% confidence interval? Round your answer to two decimal places.
7.What is the upper boundary of the 85% confidence interval? Round your answer to two decimal places.

• college stats (incomplete) -

Lacking needed data.

## Similar Questions

1. ### physics

i do not get this question at all and if u could help it'd be a real HUGE help. solve these equations (sorry i do not have the symbols so i will just write the words out. sorry again for any inconveniance. ): time= 2pi x squareroot …
2. ### Stats

You are taking a multiple choice test that has 20 questions with 4 possible answers each. You randoming quess each answer. What is the probality of getting 7 questions correct?
3. ### Stats

An instructor gives a test with 20 multiple choice questions. There are 4 responses per questions and only one choice correct. The test also has 30 True/False questions. Determine the probability a student randomly guessing on all …

5. ### elementary stats

On a multiple choice test with 11 questions, each question has four possible answers, one of which is correct. For students who guess at all answers, find the mean for the number of correct answers.
6. ### stats

a student randomly guesses at five multiple-choice questions, each question has five possible choices (suppose the choice for each question is independent): a) Find the probability that the student gets exactly three correct. b) What …
7. ### college stats

Sorry for all the questions, I really need help and an explanation so I can fully understand. I really appreciate everything. Thank you. In a random sample of 519 judges, it was found that 285 had an introvert personality type. Construct …
8. ### stats

A normal population has mean 100 and variance 25. How large must the random sample be if we want the standard error of the sample average to be 1.5?
9. ### Stats- Simple

If I ask 10 adults 3 questions for a sample, is my sample size 10?
10. ### stats

1. Suppose that you are taking a quiz of 6 multiple- choice questions (the instructor chose the questions randomly), each question having 6 possible responses. You did not study at all for the quiz and will randomly guess the correct …

More Similar Questions