User Account

All Pages

Condition for randomness-independence-normality

Assignment Help Basic Statistics
Reference no: EM131045092

Economists often track unemployment trends by measuring the proportion of people who are "underemployed," meaning they are either unemployed or would like to work full time but are only working part-time. In the summer of 2010, 18.5% of Americans were "underemployed." The mayor of Statsville wants to show the voters that the situation is not as bad in his town as it is in the rest of the country. His staff takes a simple random sample of 300 Statsville residents and finds that 43 of them are underemployed. What is the test statistic for this hypothesis test?

We cannot say because the condition for randomness, independence, or normality is not met.

  • z = -2.0644
  • z = -0.0417
  • z = -1.8616
  • z = .1433
  • z = 0.0224

Reference no: EM131045092

Questions Cloud

Expectations theory-what is the markets forecast : Suppose the interest rate on a 1-year T-bond is 5.0% and that on a 2-year T-bond is 6.4%. Assuming the pure expectations theory is correct, what is the market's forecast for 1-year rates 1 year from now?
Standard deviation between individual cars : Assuming the standard deviation between individual cars is 2.3 miles per gallon, what should the researchers conclude if the sample mean is 49 miles per gallon?
What is r2 for your regression model : Then, develop a linear regression of the data and make a prediction for a 5,000,000 LOC project. What is R2 for your regression model? Based on your R2 value, do you have confidence in this prediction?
Average accounts receivable balance : Galambos Corporation had an average receivables collection period of 19 days in 2003. Galambos has stated that it wants to decrease its collection period in 2004 to match the industry average of 15 days.
Condition for randomness-independence-normality : His staff takes a simple random sample of 300 Statsville residents and finds that 43 of them are underemployed. What is the test statistic for this hypothesis test? We cannot say because the condition for randomness, independence, or normality is n..
Short-term securities prices and interest rates : Suppose the U.S. Treasury issued $50 billion of short-term securities and sold them to the public. Other things held constant, what would be the most likely effect on short-term securities' prices and interest rates?
What is the liquidity premium on bonds : Niendorf Corporation's 5-year bonds yield 9.50%, and 5-year T-bonds yield 4.80%. The real risk-free rate is r* = 2.75%, the inflation premium for 5-year bonds is IP = 1.65%, the default risk premium for Niendorf's bonds is DRP = 1.20% versus zero for..
Mean of the distribution of quiz scores : Scores on a quiz are normally distributed with a mean of 20 and a standard deviation of 6. How would adding 5 points to each students quiz change the mean of the distribution of quiz scores?
What is the default risk premium on keys bonds : Keys Corporation's 5-year bonds yield 6.40% and 5-year T-bonds yield 4.40%. The real risk-free rate is r* = 2.5%, the inflation premium for 5-year bonds is IP = 1.50%, the liquidity premium for Keys' bonds is LP = 0.5% versus zero for T-bonds, and th..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Inefficient firms affected by the reduction

Change in International Trade Volume Why do you think international trade volume has increased over time? In general, how are inefficient firms affected by the reduction in trade restrictions among countries and the continuous increase in interna..

  Statistics-quantitatitve methods-probability

Downhill Ski Resort in Colorado has accumulated information from records of the past 30 winters regarding the measurable snowfall. This information is as follows:

  Question about probability theory

In a sample of 1,000 representing a survey from the entire population, 650 people were from Laketown, and the rest of the people were from River City.

  Correlation between education level and salary

How would you respond if someone told you that the correlation between education level and salary was 1.27?

  What would be a reasonable amount to charge

Find the 93% confidence interval of the true mean. If a day care center were starting up and wanted to keep tuition low, what would be a reasonable amount to charge?

  Comparing two groups of scores

The table below shows the scores of a group of 15 students in mathematics and art: Determine if the locations of distribution of scores for these students differ significantly for the two subjects. Use the hand calculation method and then use PHSta..

  Computing probability values using normal distributionin a

computing probability values using normal distribution.in a population of test scores not known to be normally

  Outcomes for a sequence

A website recorded whether visitors click on a shown ad. The following plot shows the outcomes for a sequence of 100 visitors, with a 1 shown if the visitor clicked on the ad and a 0 otherwise. Complete part (a) and (b) below.

  Is there significant difference in personality

A  psychologist is investigating the hypothesis that children who grow up as the only child in the household develop different personality characteristics than those who grow up in larger families.

  Confidence interval application

The US Census Bureau announce that the median sales price of new houses sold in April 2009 was $221,600 while the mean sales price was $274,300. Assume that the standard deviation of the prices is $90,000.

  Probability that a package of almonds will weigh

The weight of an almond is normally distributed with mean 0.05 ounce and standard deviation of 0.015 ounce. Find the probability that a package of 100 almonds will weigh between 4.3 and 5.3 ounces.

  Identify the null hypothesis and the alternative hypothesis

Mimi is interested in testing the claim that more than 75% of the adults believe in global warming. She conducted a survey on a random sample of 100 adults. Identify the null hypothesis and the alternative hypothesis. Determine the test statistic...

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