Question: Study habits. Aquestionnaire about study habitswas given to a random sample of students taking a large introductory statistics class. The sample of 35 students reported

Study habits. Aquestionnaire about study habitswas given to a random sample of students taking a large introductory statistics class. The sample of 35 students reported that they spent an average of 115 minutes per week studying statistics. Assume that the standard deviation is 40 minutes.

(a) Give a 95% confidence interval for the mean time spent studying statistics by students in this class.

(b) Is it true that 95% of the students in the class have weekly study times that lie in the interval you found in part (a)? Explain your answer.

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 Probability Statistics Questions!

College Students and Drinking Habits: A public health official is studying differences in drinking habits among students at two different universities. They collect a random sample of students...

29. Identify the absolute value of theCRITICALVALUE(S) used in a hypothesis test of the following claim and sample data: Claim: "The average battery life (between charges) of this model of tablet is...

1. Identify the CONCLUSION in a hypothesis test of the following claim and sample data: Claim: "The average battery life (between charges) of this model of tablet is at least 12 hours." A random...

Chapter 1 Review Questions 1) The process of using sample statistics to draw conclusions about true population parameters is called A) sampling. B) the scientific method. C) statistical inference. D)...

Assignment 4A. Theory Component Show your work for this component. Where relevant, keep all your middle work as well as your final answer to a minimum of four decimals, unless otherwise stated. For...

Question 3. Computer output from SPSS for use in Question 3 (d) Van Der Bergh et al. (2011)" conducted a study about the use of Facebook by students. A random sample of students from a small...

PART I: Choose and circle the correct/best/appropriate options (Multiple-ChoiceQuestions). (160 points--5 pts each)1-4: Scores on an exam (out of 100 points) given in a large introductory statistics...

Math 221A Exam 1: 1.You want to study how effective a particular... Math 221A Exam 1: 1.You want to study how effective a particular medication is at treating the flu. you plan to sample a group of...

QUESTION 1 Naming the ink color of color words can be difficult.For example, if asked to name the colour of the word "blue" is difficult because the answer (red) conflicts with the word "blue."This...

Exercise 1 (40 marks) Naming the ink color of color words can be difficult. For example, if asked to name the colour of the word "blue" is difficult because the answer (red) conflicts with the word...

You are a consultant to a large manufacturing corporation that is considering a project with the following net after-tax cash flows (in millions of dollars): Years from Now After-Tax Cash Flow 0...

Is it ethical for you to use what you know to get elected? Or does doing so amount to unfairly manipulating the group?

When a company raises money by issuing bonds, it is called q , q , because the company will have to pay back the investor in the future. A Sound financing B Debt financing Financial forecasting...

Calcium oxide, CaO, is prepared by heating calcium carbonate (from limestone and seashells). CaCO3(s) CaO(s) + CO2(g) Calculate the standard enthalpy of reaction, using enthalpies of formation. The...