For a 4-unit class like Statistics, students should spend average of 12 hours studying for the...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 20 students, and the distribution of total study hours per week is bell-shaped with a mean of 14 hours and a standard deviation of 2.7 hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between hours and hours on Statistics each week. b) 95% of the students spend between hours and hours on Statistics each week. c) 99.7% of the students spend between hours and hours on Statistics each week. Submit Question For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 20 students, and the distribution of total study hours per week is bell-shaped with a mean of 14 hours and a standard deviation of 2.7 hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between hours and hours on Statistics each week. b) 95% of the students spend between hours and hours on Statistics each week. c) 99.7% of the students spend between hours and hours on Statistics each week. Submit Question
Expert Answer:
Posted Date:
Students also viewed these mathematics questions
-
Find the area under one arch of the cycloid x = a(t - sin t), y = a(1 - cos t).
-
Brooks Co. purchases various investments in trading securities at a cost of $ 66,000 on December 27, 2013. (This is its first and only purchase of such securities.) At December 31, 2013, these...
-
A 95% confidence interval for a mean if the sample has n = 50 with x = 72 and s = 12, and the standard error is SE = 1.70 Find the indicated confidence interval. Assume the standard error comes from...
-
Refer to problem 6-28, concerning the audit of sales and sales returns. For this problem, assume that Rebecca is using dollar unit sampling. Required : a. Would it be practical to use combined...
-
Two alternatives are being considered: Base your computations on a MARR of 7% and an 8-year analysis period. If identical replacement is assumed, which alternative should be selected? Initial cost...
-
Please answer. The Terran Company acquired several small companies at the end of 2019 and, based on the acquisitions, reported the following intangibles in its December 31, 2019 statement of...
-
19) Find the critical value Za/2 that corresponds to a 91% confidence level. (Round to 2 decimals) 20) Find Za/2 for a = 0.08. (Round to 2 decimals) 21) Find the sample needed to estimate the...
-
Post-Change Management Concluding the hypothetical change intervention, focus on the following questions: What are the actions you will take to ensure that the organization does not return to its...
-
Write a C++ program that asks the user to input a positive integer. Use it as a seed for generating a random number, x, where x = [2022, 24680]. Display x and all its factors that are at least 2....
-
Global Supply Chain Management Global Supply Chain Management , I began to wonder how much damage has Covid19 placed on global supply chain management. What are the difficulties, risks, advantages,...
-
(a) Find the equation of the line perpendicular to 2x-7y=11 that goes through the point (-3,-1) (b) Find the equation of the line going through the point (-3,-6) and parallel to 5y-7x=9 (c) Find the...
-
Evaluate the definite integral: 4-xdx= Answer(s) submitted: no response submitted: (incorrect) recorded: (incorrect) Problem 11. (1 point) Evaluate the definite integral: [ (-4x + x) dx =
-
Jill Dougherty was hired as an investment analyst by A.M. Smith Inc. for the Cincinnati, Ohio office based on her sound academic credentials, which included an MBA from a top ranking university and a...
-
a) Calculate the goodwill that was paid by Major Ltd on the acquisition of Minor Ltd. [10 marks] b) Prepare the consolidated statement of financial position for Major Ltd at 31 July 20X8. [30 marks]...
Study smarter with the SolutionInn App