Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

A recent study by Allstate Insurance Co. finds that 82% of teenagers have used cell phones while driving (The Wall Street Journal, May 5, 2010). In October 2010, Massachusetts enacted a law that forbids cell phone use by drivers under the age of 18. A policy analyst would like to determine whether the law has decreased the proportion of drivers under the age of 18 who use a cell phone.

a. Select the null and the alternative hypotheses to test the policy analyst's objective.
b. Suppose a sample of 200 drivers under the age of 18 results in 150 who still use a cell phone while driving. What is the value of the test statistic? What is the p-value? (Negative values should be indicated by a minus sign. Round your intermediate calculations to 4 decimal places. Round "test statistic" to 2 decimal places and "p-value" to 4 decimal places.)
c. At α = 0.05 has the law been effective?
d. find out the critical value.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M998321

Have any Question? 


Related Questions in Statistics and Probability

How do you calculate conditional probability for behaviors

How do you calculate conditional probability for behaviors in applied behavior analysis?

For a recent evening at a small old-fashioned movie theater

For a recent evening at a small, old-fashioned movie theater, 25% of the moviegoers were female and 75% were male. There were two movies playing that evening. One was a romantic comedy, and the other was a World War II f ...

You work in the quality control office for a company that

You work in the quality control office for a company that manufactures fluorescent light bulbs. Your company offers a 4-year (1461 day) warranty on these bulbs. The average life span of your bulbs is 1600 days with a sta ...

The board of a major credit card company requires that the

The board of a major credit card company requires that the mean wait time for customers when they call customer service is at most 3.00 minutes. To make sure that the mean wait is not exceeding the requirement, an assist ...

In a panel discussion with 3 industry reps 2 government

In a panel discussion with 3 industry reps, 2 government reps, and 1 association rep, how many ways can they be seated along a row a) with no restrictions (each person can sit anywhere)? b) if the 3 industry reps must si ...

How would i calculate this the personnel office at a large

How would I calculate this :The personnel office at a large electronics firm regularly schedules job interviews and maintains records of the interviews. From the past records, they have found that the length of a first i ...

Hayley motorcycle company just paid a dividend of 14 today

Hayley Motorcycle Company just paid a dividend of $1.4 today, and is expected to pay a dividend in year 1 of $1.8, a dividend in year 2 of $2.3, a dividend in year 3 of $2.9, and a dividend in year 4 of $3.8. After year ...

Consider a hypothesis testing problem where the null and

Consider a hypothesis testing problem where the null and the alternative hypotheses are defined as      H0 μ=5 Vs. H1 :μ≠5 H0:μ=5 Vs. H1:μ≠5 A 95% confidence interval for μ was calculated as (2, 7). A) What would be your ...

Find the mean and the standard deviation of a binomial

Find the mean and the standard deviation of a Binomial Distribution with n = 65 and p = 0.32 Mean = 24; Stand. Deviation= 4.1 Mean = 20.8; Stand. Deviation= 3.76 Mean = 28; Stand. Deviation= 3.66 Mean = 21.8; Stand. Devi ...

Some statistics students were interested in finding out in

Some Statistics students were interested in finding out in there was a relationship between the number of hours of study for a chapter and the score on that test. On the basis of the number of hours their classmates stud ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As