Question: According to the Centers for Disease Control and Prevention, in 2008, 6.7% of 12- to 17-year-olds had used marijuana in the previous 6 months. The

According to the Centers for Disease Control and Prevention, in 2008, 6.7% of 12- to 17-year-olds had used marijuana in the previous 6 months. The Drug Abuse and Resistance Education (DARE) program underwent several major changes to keep up with technology and issues facing students in the 21st century. After the changes, a school resource ofﬁcer (SRO) thinks that the proportion of 12- to 17-year-olds who have used marijuana in the past 6 months has decreased.
(a) Determine the null and alternative hypotheses.
(b) If sample data indicate that the null hypothesis should not be rejected, state the conclusion of the SRO.
(c) Suppose, in fact, that the proportion of 12- to 17-year-olds who have used marijuana in the past 6 months is 6.4%. Was a Type I or Type II error committed?

Step by Step Solution

★★★★★

3.46 Rating (162 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a H 0 p 0067 H 1 p 0152 b There is not sufficient evidence ... View full answer

Question Has Been Solved by an Expert!

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

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

445-M-S-H-T (544).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

According to the Centers for Disease Control and Prevention publication HIV/AIDS Surveillance Report, Vol. 19, the number of AIDS cases in the United States in 2007, by gender and race, is as shown...

According to the Centers for Disease Control and Prevention publication Health, United States, in 2002, 16.5% of persons under the age of 65 had no health insurance coverage. Suppose that, today,...

According to the Centers for Disease Control and Prevention, life expectancy at age 65 in America is about 18.7 years. Medical researchers have argued that while excessive drinking is detrimental to...

I need to write up a case study considering the following questions. HELP. Prepare "Metabical: Pricing, Packaging and Demand Forecasting Case. Questions for consideration: Calculate the 5-year unit...

Prepare an informative speech for Dr. John L. LaMattina, President, Global Research and Development, that will be delivered telephonically to shareholders at the quarterly earnings call. The...

Metabical: Pricing, Packaging, and Demand Forecasting for a New Weight-Loss Drug (HBS 4183) Supplementary link :...

HI this is a Marketing section that is part of a business plan I just need this part put into power point for me . I have the flu and don't know to much about Power Point can someone please help me....

Case of Study 1 - Metabical: Pricing, Packaging, and Demand Forecasting for a New Weight-Loss Drug 1. What key issues and their implications are highlighted in this case (both financial and...

A left-tailed test with = 0.01. Determine the critical value(s) for a one-mean z-test. For each exercise, draw a graph that illustrates your answer.

Six hundred timber piles are to be driven to a depth of 40 ft in sandy silt below the water table. The soil has a we unit weight of 105 pcf. Compute a representative ultimate pile capacity if minimum...

The New Rochelle Humane Society made a contract with the city of New Rochelle to capture and impound all dogs running at large. Spiegler, a minor, was bitten by some dogs while in her schoolyard. She...

Compare leasing with borrowing from the financial point of view

A wireless store owner takes presale orders for a new smartphone and tablet. He gets 340 preorders for the smartphone and 250 preorders for the tablet. The combined value of the preorders is...

In Problems 3974, solve each system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent. x - 3y + z = 1 2x y 4z = 0 x - 3y + 2z = 1 x - 2y = 5

In Problems 3974, solve each system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent. 2x + y z = 4 - -x + y + 3z = 1

We are now considering investing in a surface-mount placement (SMP) machine: a $500,000 initial investment, annual savings of $92,500 for a 10-year period, and a salvage value of $50,000. We use 10%...

A population consists of the following five values: 10, 10, 38, 37, 13. b. By listing all samples of size 3, compute the mean of the distribution of the sample mean and the population mean. Compare...

A Mesophilic bacterium A utilizes glucose to produce an intracellular protein B and an extracellular byproduct C. The aerobic bacterium is metabolically active in the pH range of 6.9 7.2. A...