Does release of harry potter book lead children to spend

Assignment Help Electrical Engineering

Reference no: EM131024872

Does the release of a Harry Potter book lead children to spend more time reading and thus reduce the number of accidents they have? Doctors in England compared the number of emergency room visits due to musculoskeletal injuries to children aged 7 to 15 during two types of weekends: (1) following the release dates of two books in the Harry Potter series and (2) during 24 "control" weekends, for one hospital.The following table shows the data, with the "Harry Potter weekends" in italics.

WEEKEND	INJRIES	WEEKEND	INJURIES
6/7/2003	63	7/10/2004	57
6/14/2003	77	7/17/2004	66
6/21/2003	36*	7/24/2004	62
6/28/2003	63	6/4/2005	51
7/5/2003	75	6/11/2005	83
7/12/2003	71	6/18/2005	60
7/19/2003	60	6/25/2005	66
7/26/2003	52	7/2/2005	74
6/5/2004	78	7/9/2005	75
6/12/2004	84	7/16/2005	37*
6/19/2004	70	7/23/2005	46
6/26/2004	75	7/30/2005	68
7/3/2004	81	8/6/2005	60

(a) Given the nature of the data, can we make an inference about the release of Harry Potter books causing a change in accidents? Why or why not?

(b) The average for the Harry Potter weekends is 36.5, with a standard deviation of 0.7. The corresponding numbers for the other (control) weekends are 67.4 and 10.4. Use a t test to investigate the claim that the small number of injuries during Harry Potter weekends is consistent with chance variation. Use α = 0.01.

Reference no: EM131024872

Questions Cloud

Determine the equilibrium quantity : Determine the equilibrium quantity. Determine the equilibrium price. Graph the supply & demand functions. Remember to graph price on the vertical axis and to graph quantity on the horizontal axis. Label the equilibrium quantity and price on your gr..

What is the explanatory variable : In a controversial study to determine the effectiveness of AZT, a group of HIV-positive pregnant women were randomly assigned to get either AZT or a placebo. Some of the babies born to these women were HIV-positive, while others were not. What is ..

Define what is meant by global business : Define what is meant by Global Business. Identify the stages in the phase model of globalisation and explain the strengths and weaknesses inherent in each.

Chart of accounts for exact wording of account titles : Journalize the necessary entries. The accounts have not been closed. Refer to the Chart of Accounts for exact wording of account titles. If a balance sheet were prepared for Brentwood Bike Co. on May 31, 2016, what amount should be reported as cash?

Does release of harry potter book lead children to spend : The average for the Harry Potter weekends is 36.5, with a standard deviation of 0.7. The corresponding numbers for the other (control) weekends are 67.4 and 10.4. Use a t test to investigate the claim that the small number of injuries during Harry..

Examine cross-border mergers : Examine Cross-Border Mergers, Acquisitions and Valuations. This topic addresses transactions like Mercedes-Benz purchase of Chrysler, and of large foreign based banks buying US based banks.

How many packages of each you should buy to minimize cost : Use the simplex method to solve the following maximization problem with the given tableau. You may use an applet or something from the internet to help you, but you must explain each step. If you have it worked without an explanation for each step..

Make an effort on reducing days in accounts receivable : How might a financial manager and the department administrator for your chosen capital investment plan work together to make an effort on reducing days in accounts receivable?

Complete the statement below that outlined katies : Complete the statement below that outlined Katie's treatment of the stock. Katie is correct about the tax result.

User Account

All Pages