An introductory statistics instructor wants to know if the median number of hours that students talk on
Question:
An introductory statistics instructor wants to know if the median number of hours that students talk on the phone per week is more than 15. He randomly sampled 20 students, asked them to record the number of hours they talked on the phone in one week, and obtained the following data:
Do the data indicate that the median number of hours that students talk on the phone per week is more than 15? Use the α = 0.05 level of significance.
Transcribed Image Text:
70 30 30 60 30 30 100 60 60 60 20 20 20 5 10 10
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 91% (12 reviews)
We first convert the data to plus and minus signs and zeros by comparing the data values to This ...View the full answer
Answered By
Parvesh Kumar
I am an experienced Mathematics and Statistics tutor with 10 years of experience teaching students and working professionals. I love teaching students who are passionate to learn subjects or wants to understand any mathematics and statistics concept at graduation or master’s level. I have worked with thousands of students in my teaching career. I have helped students deal with difficult topics and subjects like Calculus, Algebra, Discrete Mathematics, Complex analysis, Graph theory, Hypothesis testing, Probability, Statistical Inference and more. After learning from me, students have found Mathematics and Statistics not dull but a fun subject. I can handle almost all curriculum of mathematics. I did B.Sc (mathematics), M.Sc (mathematics), M.Tech (IT) and am also Gate (CS) qualified. I have worked in various college and school and also provided online tutoring to American and Canadian students. I look forward to discussing with you and make learning a meaningful and purposeful
5.00+
4+ Reviews
10+ Question Solved
Related Book For
Statistics Informed Decisions Using Data
ISBN: 9780134133539
5th Edition
Authors: Michael Sullivan III
Question Posted:
Students also viewed these Statistics questions
-
A statistics instructor wants to examine whether a relationship exists between the hours a student spends studying for the final exam (Hours) and a students grade on the final exam (Grade). She takes...
-
A statistics instructor wants to see if allowing students to use a notecard on exams will affect their overall exam scores. The instructor thinks that the results could be affected by the type of...
-
Is this a randomized experiment or an observational study? Explain how you know. Can people better memorize letters if they are presented in recognizable groupings than if they are not? Students in...
-
A block of ice with mass 2.00 kg slides 0.750 m down an inclined plane that slopes downward at an angle of 36.9 below the horizontal. If the block of ice starts from rest, what is its final speed?...
-
The table (supplied by San Diego Gas and Electric) gives the power consumption in megawatts in San Diego County from midnight to 6:00 A.M. on December 8, 1999. Use Simpsons Rule to estimate the...
-
A system has four components with the RBD below. If the power supply has a 1-year reliability of 0.95 and the controller has a 1-year reliability of 0.99, what is the system reliability for 1 year?...
-
In a centrifugal pump, the liquid enters the pump at the (a) top (b) bottom (c) centre (d) sides
-
Jackie Wengler, owner of Wengler Home Decorating Service, has requested that you prepare from the following balances (a) An income statement for June 201X, (b) A statement of owner?s equity for June,...
-
Jordan Books buys books and magazines directly from publishers and distributes them to grocery stores. The wholesaler expects to purchase the following inventory: Required purchases (on account)...
-
Find the output voltage vo(t) in the circuit of Fig. 8.94. t=0 10 512
-
The division from which the winner of the Stanley Cup came for the years 1990 to 2015 is given in the following list, where the Western Division is represented by a W and the Eastern Division is...
-
A statistics student thinks that an individual's arm span is equal to the individual's height. To test this belief, the student obtained the following data from a random sample of 10 students. Is...
-
Refer to Figure 4.16, which shows a randomization distribution for hypotheses H 0 : μ 1 = μ 2 vs H a : μ 1 μ 2 . The statistic used for each...
-
How do mitochondria participate in cellular metabolism beyond ATP production, including the regulation of fatty acid oxidation, amino acid metabolism, and the production of metabolites involved in...
-
Jorge opened 24 cans of tennis balls. Each can had 3 tennis balls in it. Jorge filled as many baskets as he could by putting 7 tennis balls in each basket. After filling as many baskets as he could,...
-
1. Choose a grade level and a theme. 2. Decide how you would display the gallery walk. What will you need? How will you build students' background knowledge? How will you get students engaged in the...
-
Using the following graphs, match the market situation with the correct graph. Price 0 E1 E Q Q Quantity Graph C S 52 Price P 0 Which graph shows an increase in supply? Which graph shows a decrease...
-
A cannonball is shot with an initial speed of 50 m/s. At a launch angle of 40 toward a castle wall 220 m away. The height of the wall is 30 m. Assume there is no air resistance. (For this problem,...
-
Rachel Shinnars gross earnings for the week are 800. Rachels income tax withholding is 95, she has no voluntary deductions, and the Social Security tax rate is 6%. Compute Rachels net pay for the pay...
-
A fast-food restaurant averages 150 customers per hour. The average processing time per customer is 90 seconds. a. Determine how many cash registers the restaurant should have if it wishes to...
-
A bank loaned out $12,000, part of it at the rate of 8% per year and the rest at the rate of 18% per year. If the interest received totaled $1000, how much was loaned at 8%?
-
In Problems 936, find the real solutions, if any, of each equation. 5- X 2 3
-
In Problems 936, find the real solutions, if any, of each equation. |2v| = -1
-
Answer the following questions with respect to the following Strategy pattern diagram as illustrated below 3. The relationship between StudentToSchool class and Strategy and actors with strategy?...
-
a) Design a simple relational database that captures the information required to maintain records of orders. Take into account that your design should allow a customer to order as many items as...
-
Write a procedure named AVG in assembly language which calculates and returns the average of three memory operands. Also show how this procedure will be called from main. Pass arguments (variable...
Study smarter with the SolutionInn App