User Account

All Pages

State the null and alternative hypotheses

Assignment Help Basic Statistics
Reference no: EM131093494

A random sample of 172 students was asked to rate on a scale to from 1 (not important) to 5 (extremely important) health benefits as a job characteristic (note that the rating scale can also have decimals, i.e. a student can give a rating of 1.32). The sample mean rating was 3.31, and the sample standard deviation was 0.70. For a type I error of 1% (alpha), can you be reasonably certain that the average rating is more than 3 in the population?

1. State the null and alternative hypotheses.

2. Specify the rejection region for  = 0.01. Reject H0 if

3. Calculate the test statistic

4. What is your conclusion?

5. Obtain the lower bound of a 99% confidence interval for the mean rating.

6. Obtain the upper bound of a 99% confidence interval for the mean rating.

Reference no: EM131093494

Questions Cloud

What factors made the communications effective and timely : Identify, from the course text readings on World War I, World War II, and the Cold War, one example from each conflict of effective. Explain what factor(s) made the communications effective and timely.
Read an edgelistfor an undirected weighted graphand : Read an edgelistfor an undirected, weighted graphand1. useDijkstra's Single Source Shortest Path Algorithm to construct the shortest path from a given vertex S to all other vertices.2. useKruskal's algorithm to construct a minimal spanning tree for t..
Describe utilizing an anthropological perspective : Select a specific culture and write a minimum 5 page paper (double spaced, 12pt., Times New Roman) describing it utilizing an anthropological perspective. You may select any culture or subculture to write your paper on as long as conducting the re..
Brief explanation to show the effect of policy : In recent weeks the US economy has been operating with an 7.2% unemployment rate and about 2% inflation. Consider the following changes and use a separate graph each time and a very brief explanation to show the effect of this policy
State the null and alternative hypotheses : A random sample of 172 students was asked to rate on a scale to from 1 (not important) to 5 (extremely important) health benefits as a job characteristic (note that the rating scale can also have decimals,
Introduction and overview of groupon : Introduction and overview of Groupon along with an initial analysis of the growth opportunity. Country of choice - China
Find the cut off income : If the company plans to target the bottom 18% of the families based on income, find the cut offincome. Assume the variable is normally distributed.
What were some of the key problems facing the united states : What were some of the key problems facing the United States and the Early Republic following independence? Use specific examples.
Evaluate the usage of card : 1. IA Credit Card Company wants to evaluate the usage of their card. They randomly selected 16 credit card holders and found that the mean amount they charged in the past twelve months was $2017, while the standard deviation was $867.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Effectiveness of the safety program

Test the null hypothesis using the test you defined in part (a). What can you say about the effectiveness of the safety program?

  The researchers also examined the effect of wine

to compare the effects on energy intake of drinking wine either before or with a meal 11 men participated in a

  Discussion on quadratic equations

Some students planned a get together, the budget for food was $500.00. Five of the students failed to come because of the distance ad therefore the cost of food for each member increased by $5.00.

  Determine the confidence interval

Which of the following assumptions for inference about a proportion using a confidence interval are violated,

  Shark attacks and deaths over a certain year

The number of shark attacks and deaths over a recent 5- year period is shown. Find the mean, median, mode, midrange, variance, and standard deviation for the date. Which data set is more valuable?

  Correlation-predication-confidence and errors

In your resources are three news articles that report on scientific studies and make recommendations on the basis of them. Write a paper analyzing these articles. For each article answer these questions and give reasons for your answers:

  How information systems are changing various aspects

Write a 700- to 1,050-word paper describing how information systems are changing various aspects of the accounting profession. Include a description of several new technologies and their effects on accounting processes.

  Kind of theoretical distribution

Plot a CDF based on these data. What kind of theoretical distribution do you think would be appropriate for these data? Why?

  Let f denote the probability that the second vehicle

a certain university has 14 vehicles available for use by faculty and staff. four of these are vans and 10 are cars. on

  A search engine site claims that on average one out of five

a search engine site claims that on average one out of five visitors clicks on an ad.a if 8 users visit the site what

  A sample of pvc pipes coming off a production line were test

A sample of PVC pipes coming off a production line were tested for pipe diameter size. The statistical results (in millimeters) were:

  Calculate the confidence interval for the proportion of

every year the cdc conducts phone surveys to assess the health risks of people in the u.s. this survey is abbreviated

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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