Question: Hi I need help with answering 2 questions below. For the first question the answer I got is 0.7454 but want to double check and

Hi I need help with answering 2 questions below. For the first question the answer I got is 0.7454 but want to double check and need help with question 2. I have attached the table and formulas to be used Thank you in advance The questions are: A statistics professor knows that the time taken to mark a final exam is normally distributed, with a mean of 45 minutes and a standard deviation of 9 minutes. a) What is the probability that the next exam paper will take more than 39 minutes to mark? b) The professor has 22 hours to mark the last 29 exams. What is the probability he will finish in time? Hint: Determine the average time per exam he will have to mark

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Q:

Review the following table. You have the following information from your 2020 joint tax return W-2 104,800 Stock Sale L/T 5,000 Qualified Dividends 3,500 Sale of Mickey Mantle autograph (collectible)...

Q:

Hey i need help with a final semester project that i am doing where i was trying to do it by my self but could not do and this final assignmentis due by the first week of december. When doing the...

Q:

Good Morning... I need help with questions 1-7 for Case 6 in the document attached...Please. Cases for Management Decision-Making CA-1 Suggested Uses of Cases Case Overview CASE 1 This case is the...

Q:

Please choose one of the case studies below. All of the cases are found in the Jennings text book. Peruse the cases and identify one that is of interest to you -- because of the types of ethical...

Q:

hi i need help on answering these questions. my answer's are incorrect. thank you for the help! For the next 3 Questions.) My Kitchen Delights (MKD) is considering two new suppliers for the jars used...

Q:

hi can somone help me with these question? I'm stuck from2. Scatter Plots using Matplotlib & Numpy. i want to check my answer with you, so I would be confirmed its good. if you familiar with jupyter...

Q:

Hi, I need help with these 2 questions. thank you for your help Question 1: For each situation, explain why seeking out an individual saver to borrow money from is not ideal. then, identify which...

Q:

look into the transcription of the videos that we coded for the Dominance project and identify if there are any errors (grammar and spelling and etc): 1673015005057.mp4 Baseline 181 Baseline181 Hi,...

Q:

here is the original question, As the HR representative, Anna was reached out by a few colleagues who shared their complaints and hardships on the job (P.6). Attributions between Anna and Mohammed on...

Q:

Hi, just need help answering these 7 questions. I will not post a question per thread as I want to just get answers. Don't worry about step by step solutions as I just need to double check that my...

Q:

Hi i need help some of the questions. Make sure you read the instructions before answering each question. And I want it to be typed up. Please do not handwritten it. I want it to be typed up. And...

Q:

Students should not be allowed to play PUBG Don\'t copy from Google Type the answer briefly

Q:

Special Occasion Speech I have chosen the Special Occasion " Birthday , " Wishing my sweet daughter a Happy Birthday will forever be one of my favorite things to do because I 'm so happy and grateful...

Q:

MAC 2 3 1 1 Learning Activity # 9 Related Rates Name: q , Group #: A 2 5 - ft ladder is leaning against a house when its base is being pushed towards the wall. By the time the base is 1 2 feet from...

Q:

Residents of a neighborhood financed the installation of sidewalks through a note payable. The note was to be repaid through a special assessment tax on their properties. When is it appropriate to...

Q:

Data for Rosenthal Company are presented in P17-3B. Instructions Prepare the operating activities section of the statement of cash flows using the direct method.

Q:

The units of an item available for sale during the year were as follows: There are 36 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the...

Q:

Selected accounts of Blume Irrigation System at December 31, 2012, follow: Requirements 1. Prepare the companys classified balance sheet in report form at December 31, 2012. 2. Compute the companys...

Q:

Kosmos Company purchased merchandise on account from a supplier for $21,500, terms 1/10, n/30.Kosmos Company returned $1,500 of the merchandise and received full credit. a. If Kosmos Company pays the...

Q:

Design a minimum-mass symmetric three-bar truss (the area of member 1 and that of member 3 are the same) to support a load P, as was shown in Fig. 2.9. The following notation may be used: Pu = P cos...

Q:

Dirt bikes, part 2. The model in Exercise 30 is missing one predictor that we might have expected to see. Engine Displacement is highly correlated (r 0.783) with MSRP, but that variable has not...

Q:

Dirt bikes. Off-road motorcycles (often called dirt bikes) are a segment (about 18%) of the growing motorcycle market. Because dirt bikes offer great variation in features, they are a good market...

Q:

Lobster industry 2008, price diagnosed. In Chapter 18, Exercise 35 (Lobster industry 2008), we constructed the following regression model to predict the Price of lobster harvested in Maines lobster...