State null hypothesis and alt hypothesis

Assignment Help Basic Statistics
Reference no: EM13109483

At a college, two professors, Saber and Tooth, are each teaching large sections of introductory statistics with 500 students in each section. They decide to compare the results from their first exam. It would be too cumbersome to compare all 1000 students, so the decide to select a random sample of 50 students from each section. They want to find out whether or not the mean scores of students performance in these two sections is comparable for this one exam.

A) State the null hypothesis and alternative hypothesis. Indicate the type of test to be performed (left-tailed, right-tailed, or two tailed)

B) Provide a statement in terms of the hypothesis testing process in this problem that would signify a Type I Error has been committed.

C) Provide a statement in terms of the hypothesis testing process in this problem that would signify a Type II Error has been committed.

Reference no: EM13109483

Questions Cloud

Self esteem scores of a sample of statistics students : We measure the self esteem scores of a sample of statistics students, reasoning that this course may lower their self esteem relative to that of the typical college student (µ=55 and σ x =11.35) We obtain these scores:
Deliberate some corporate strategy initiatives : Presume for a moment that you are Rex Tillerson, CEO/chairman heir apparent. Deliberate some corporate strategy initiatives you would take with regard
Relationship management has over traditional seller : enabled customer relationship management and outline the advantages that technology allowed customer relationship management has over traditional seller customers interactions
Describe the first goal of national unions : What is the first goal of national unions? Corporate goal achievement is facilitated or inhibited by how successfully which of the following relations are conducted?
State null hypothesis and alt hypothesis : State the null hypothesis and alternative hypothesis. Indicate the type of test to be performed (left-tailed, right-tailed, or two tailed). Provide a statement in terms of the hypothesis testing process in this problem that would signify a Type I ..
Select a country except one in north america : Select a country except one in North America. This country will be the foundation for this assignment and subsequent individual assignments.
Implementing a training and development program : Write a 2 to 3 page double spaced paper outlining the benefits to an organization by implementing a Training & Development program.
Determine best degree program in terms of projected income : The director of career advising at Orange Community College wants to use decision analysis to provide information to help students decide which 2-year degree program they should pursue.
Do manufactures of products for children : Do manufactures of products for children have special responsibilities to consumers and society? If do what are these errands?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Sample of schizophrenic people and people

Psychologists once measured 77 variables on a sample of schizophrenic people and a sample of people who were not schizophrenic. They compared the two samples using 77 separate significance tests.

  Confidence interval for sample of 60 students

A sample of 60 students from a large university is taken. The average age in the sample was 22 years with a standard deviation of 6 years.

  Findout the probability using normal approximation

Findout the probability using normal approximation for the provided values. Findout the specified probability from a table of Normal probabilities.

  Hypothesis test - chi square

M&M Milk Chocolate candies colors are not all the same proportion. Blue consist of 24% of the bag pieces while Brown & Red only 13% each. The following was found:

  Independent and dependent variable from your place of work

Does a regression model imply causation? Why or why not? Provide an example which provides and independent and dependent variable from your place of work.

  Trend line for the four quarters

The trend line y = 0.70 + 0.005t was calculated from quarterly data for 1999 -2003, where t = 1 for the first quarter of 1999. The seasonal indexes computed from the trend line for the four quarters of the year 2004 were .85, 1.05, 1.15, and .80, ..

  Population proportion preferring milwaukee best

Of the 250 students in a blind taste test, 150 (60%) preferred Milwaukee's Best over Natural Light. Then the 90% confidence interval for the student population proportion preferring Milwaukee's Best is:

  Confidence interval for the rate of effectiveness

Without constructing the 98% confidence interval for the rate of effectiveness, would you expect the interval to be longer or shorter compared to the 95% confidence interval? Why?

  Homogeneity of variance assumption test

How do we decide if the homogeneity of variance assumption is significantly violated?

  What is the estimate of the overall proportion

We want to know if his support has decreased. In computing a test of hypothesis with , what is the estimate of the overall proportion?

  Preventable health care-related errors cost

The Agency for Healthcare Research and Quality reports that medical errors are responsible for injury in 1 out of every 25 hospital patients in the United States. These errors are tragic and expensive. Preventable health care-related errors cost t..

  Political strategist belief warranted

A political strategist believes that less than 55% of voters in a certain state support a particular issue. He then commisions a poll of 500 voters and 54% of them support this issue. If = .05, is the political strategist's belief warranted?

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