Find legitimate to use a directional hypothesis

Assignment Help Basic Statistics
Reference no: EM13142844

If H0 is in reality false and it is legitimate to use a directional H1, which of the following will yield a more powerful test?

1. one-tailed alternative hypothesis
2. one-tailed or two-tailed alternative hypothesis will yield the same power
3. two-tailed alternative hypothesis
4. type of alternative hypothesis has no effect on power.

 

Reference no: EM13142844

Questions Cloud

How many women randomly selected to find mean weight : How many women must be randomly selected to estimate the mean weight of women in one age group. We want 90% confidence that the sample mean is within 3.7 lb of the population mean.
Describe the economy of southeast asia : Describe the economy of Southeast Asia. What are the poorer countries and why are they so desperately poor? How did it related with the US (especially like Vietnam)?
The opponent-process theory : The opponent-process theory suggests that we often experience emotions in opposing pairs such as fear and relief or pleasure and pain. When we experience one end of the spectrum, the other end is temporarily suppressed and thus we rarely experience t..
Briefly discuss the effects of habitat heterogeneity : Briefly discuss the effects of habitat heterogeneity (patchiness) on population dynamics and interaction between predators and prey.
Find legitimate to use a directional hypothesis : If H0 is in reality false and it is legitimate to use a directional H1, which of the following will yield a more powerful test? one-tailed alternative hypothesis
What china’s economic strength and weaknesses : Describe why China has taken off economically speaking over the past 20 years. What China’s economic strength and what are their weaknesses?
"war on terrorism" : Discuss how you see the "war on terrorism" as of this date. Do you think the United States should be engaged in such a war? Give reasons for or against this "war"
This video reviews the prevalence : This video reviews the prevalence of Autistic Spectrum Disorder and the intervention methods that the parents can use to help in the assessment process. This video reviews the Autistic Spectrum Disorder and the growing prevalence of this disorder.
Describe and compare two statistical analysis procedures : describe and compare two statistical analysis procedures used in falsification research. how can ststistical analysis be used in historical and observational research?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Question regarding goodness of fit test

The American Bankers Association collects data on the use of credit cards, debit cards, personal checks, and cash when consumers pay for in-store purchases (The Wall Street Journal, December 16, 2003). In 1999, the following usages were reported.

  Testing hypotheses for critical value

The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals:

  Mean of sample according to central limit theorem

If all samples of size 64 are drawn, mean of sample according to Central Limit Theorem is 100.

  Measures of variation and measures of center for given data

Following sample data shows the weekly closing price of ABC stock.  Compute the sample mean and variance from this data set.

  Power of a hypothesis test

Explain how the power of a hypothesis test is influenced by each of the following. Assume that all other factors are held constant.

  Explain audience why r points to conclusion

We conclude that memory of food intake in the distant past is fair to poor." Explain to your audience why r=0.217 points to this conclusion.

  Proportion of adults planning on buying car

A marketing research firm wishes to estimate the proportion of adults who are planning to buy a new car in the next 6 months. A simple random sample of 100 adults led to 22 who were planning to buy a new car in the next 6 months.

  Determine difference in two amounts using alpha

Marketing firm asked the random set of married and single men as to how much they were eager to spend for vacation. At  alpha= .05, is a difference in two amounts?

  Coincidence and probability

The Spanish patients, two men and two women, were elderly and very ill. All four had undergone routine dialysis at the Hospital de la Princesa.

  Use of f-statistics in data analysis

Give an example of when the F-statistic would be a useful value in data analysis. Provide details of what you would measure and how the F-statistic would be used.

  Skewed distributions

For the following data set, indicate whether the shape of the distribution is normal, positively skewed, or negatively skewed. Provide evidence for your answer by calculating the mean, mode, and median.

  How many questions test contain to reduce standard deviation

How many questions must the test contain in order to reduce the standard deviation of Julie's proportion of correct answers to one-fourth its value for an 100-item test?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd