Statement we can make about the p value for the test

Assignment Help Basic Statistics

Reference no: EM131407611

Repeat given Exercise using the z-test approximation to the unequal-variances t-test.

Exercise
Fred and Martina, senior agents at an airline security checkpoint, carry out advanced screening procedures for hundreds of randomly selected passengers per day.

For a random sample of 30 passengers recently processed by Fred, the mean processing time was 124.5 seconds, with a standard deviation of 20.4 seconds. For a random sample of 36 passengers recently processed by Martina, the corresponding mean and standard deviation were 133.0 seconds and 38.7 seconds, respectively. Using the 0.05 level of significance, can we conclude that the population mean processing times for Fred and Martina could be the same?

Using the appropriate statistical table, what is the most accurate statement we can make about the p-value for the test? Construct and interpret the 95% confidence interval for the difference between the population means.

Reference no: EM131407611

Questions Cloud

How might such externalities affect network carrier decision : MBAA 523- Networks are subject to negative externalities. How might such externalities affect a network carrier's decision to add another spoke city to its network? Explain. (You may wish to use marginal benefit/cost analysis).

Is given consistent with the findings of the hypothesis test : Given the presence or absence of the 0.00 value within the interval, is this consistent with the findings of the hypothesis test?

Explain how attachment and trust are related : In your essay, provide a comprehensive explanation of: Explain how attachment and trust are related. Describe how attachment occurs. Identify behaviors indicating that babies are attached to their parents

Read vargas family case study : The genogram can be handwritten and scanned, done as a PDF, or done using Word tools to ensure it can uploaded to LoudCloud. You can also go to the following site to download the GenPro Software.Include the following in your genogram:All family mem..

Statement we can make about the p value for the test : Using the appropriate statistical table, what is the most accurate statement we can make about the p-value for the test? Construct and interpret the 95% confidence interval for the difference between the population means.

How is the story helped by camera angles : How are the attitudes and perspectives on life from that era reflected in the film? How is the story helped by camera angles? Provide several specific examples. How is the story helped by music? Provide several specific examples

Expected return from the insurance company : The annual premium for a $20,000 insurance policy against the theft of a painting is $300. If the (empirical) probability that the painting will be stolen during the year is 0. 02, what is your expected return from the insurance company if you t..

Expected value of the game : You draw and keep a single bill from a hat that contains a $1,$5,$10,and $100 bill. What is the expected value of the game to you?

Determine and interpret pvalue for personal expenditure case : According to the U.S. Bureau of Labor Statistics, personal expenditures for entertainment fees and admissions averaged $349 per person in the Northeast and $420 in the West.- Construct and interpret the 99% confidence interval for the test.

User Account

All Pages