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Question 1 The time...
The time a student sleeps per night has a distribution with mean 5.1 hours and a...
The time a student sleeps per night has a distribution with mean 5.1 hours and a standard deviation of 0.4 hours. Find the probability that average sleeping time for a randomly selected sample of 30 students is more than 5 hours per night. (keep 4 decimal places)
Central Limit Theorem The time a student sleeps per night has a distribution with mean 6.2...
Central Limit Theorem The time a student sleeps per night has a distribution with mean 6.2 hours and a standard deviation of 0.5 hours. Find the probability that average sleeping time for a randomly selected sample of 32 students is more than 6 hours per night. (keep 4 decimal places)
It is known that the number of hours a student sleeps per night has a normal...
It is known that the number of hours a student sleeps per night has a normal distribution. The sleeping time in hours of a random sample of 8 students is given below. 8.6, 8.3, 7.6, 6, 7.1, 5.6, 5.1, 6. Compute a 98% confidence interval for the true mean time a student sleeps per night and fill in the blanks appropriately. We have 98 % confidence that the true mean time a student sleeps per night is between ____ and...
The time a student sleeps per night has a normal distribution with mean 6.2 hours and...
The time a student sleeps per night has a normal distribution with mean 6.2 hours and a standard deviation of 0.5 hours. Find the 32nd percentile of the sleeping time of students.
Question 6 Write the quadratic equation that has these roots 6 and a Write your answer...
Question 6 Write the quadratic equation that has these roots 6 and a Write your answer in the form ax?+bx+c=0 X : I don't know 2 attempts You answered 5 out of 5 correctly. Asking up to 6.
May i get help with question 7 and 8. And will you please make sure i did the rest correctly. If ...
May i get help with question 7 and 8. And will you please make
sure i did the rest correctly. If you zoom in you can see
questions. Thank you sooooo much.
Answer: 30 Dogs sleep an mean of 13 hours a night with a standard deviation of 1 hour (roughly, as per this article). Things are little more hectic at my house. Penny, lovingly referred to as demon puppy, barely sleeps. At best, she sleeps 10 hours a day...
Question 5 The average amount of a beverage in randomly selected 16-ounce beverage can is 15.9...
Question 5 The average amount of a beverage in randomly selected 16-ounce beverage can is 15.9 ounces with a standard deviation of 0.5 ounces. If a random sample of sixty-four 16- ounce beverage cans is selected, what is the probability that mean of this sample is less than 16 ounces of beverage? (keep 4 decimal places) I don't know 2 attempts
4. Suppose that 75% of the students in a large class know how to answer a...
4. Suppose that 75% of the students in a large class know how to answer a particular test question correctly. You take a random sample of n = 5 student exams from the class. (a) What is the probability that none of the 5 students answered the test question correctly? (b) If the instructor gives no partial credit. 4 points for a correct answer and 0 points for an incorrect answer, i. What are the mean and standard deviation of...
PLEASE PLEASE PLEASE ANSWER THIS! ONLY THIS INFORMATION IS GIVEN!!! Problem 7. A test contains n...
PLEASE PLEASE PLEASE ANSWER THIS! ONLY THIS INFORMATION
IS GIVEN!!!
Problem 7. A test contains n = 3 true or false questions. Any given student answers each question correctly with a certain probability called the "success rate"), independently acorss questions. In the class, 80% of the students know the materials quite well and have a success rate of p1 = 0.9, so the number of correct answers they get follows Bn, Pı). The rest of the students do not know...
Show and explain how to do using Excel. The mean amount of time it takes a...
Show and explain how to do using Excel. The mean amount of time it takes a kidney stone to pass is 13 days and the standard deviation is 5 days. Suppose that one individual is randomly chosen. Let X = time to pass the kidney stone. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N(__________________,__________________) b. Find the probability that a randomly selected person with a kidney stone will take...
Question 6 Write the quadratic equation that has these roots 6 and a Write your answer in the form ax?+bx+c=0 X : I don't know 2 attempts You answered 5 out of 5 correctly. Asking up to 6.
May i get help with question 7 and 8. And will you please make
sure i did the rest correctly. If you zoom in you can see
questions. Thank you sooooo much.
Answer: 30 Dogs sleep an mean of 13 hours a night with a standard deviation of 1 hour (roughly, as per this article). Things are little more hectic at my house. Penny, lovingly referred to as demon puppy, barely sleeps. At best, she sleeps 10 hours a day...
Question 5 The average amount of a beverage in randomly selected 16-ounce beverage can is 15.9 ounces with a standard deviation of 0.5 ounces. If a random sample of sixty-four 16- ounce beverage cans is selected, what is the probability that mean of this sample is less than 16 ounces of beverage? (keep 4 decimal places) I don't know 2 attempts
4. Suppose that 75% of the students in a large class know how to answer a particular test question correctly. You take a random sample of n = 5 student exams from the class. (a) What is the probability that none of the 5 students answered the test question correctly? (b) If the instructor gives no partial credit. 4 points for a correct answer and 0 points for an incorrect answer, i. What are the mean and standard deviation of...
PLEASE PLEASE PLEASE ANSWER THIS! ONLY THIS INFORMATION
IS GIVEN!!!
Problem 7. A test contains n = 3 true or false questions. Any given student answers each question correctly with a certain probability called the "success rate"), independently acorss questions. In the class, 80% of the students know the materials quite well and have a success rate of p1 = 0.9, so the number of correct answers they get follows Bn, Pı). The rest of the students do not know...
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