Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A study was conducted on the annual incomes of public school teachers in the state of x, in metropolitan area of less than 100,000, and in metropolitan areas having a population of over 500,000. Some sample statistics are:The group has the following characteristics:
Less than 100K
Population 45
Mean $31,290
Standard Deviation $1,060
More than 500K
Population 60
Mean $31,330
Standard Deviation $1,900
Test the hypothesis that the annual income of teachers in areas of more than 500,000 is significantly more than those in areas of less than 100,000. Use the 5% level of risk.
The average amount of time between a score by either team in college soccer games is 15.2 minutes.
what is the probability that at least 8 of the words on the test are words that the student knows?
Demonstrate correct use of descriptive statistics. Demonstrate proficiency in hypothesis testing. Evaluate the results of a statistical analysis.
A cognitive psycholgist believes that a particular drug improves short-term memory. The drug is safe, with no side effects. An experiment is conducted in which 8 ramdomly selected subjects are given the drug and then given a short time to memorize..
She chose the sample of 25 women who were recently married for first time and found average age was 23.5 years. Standard deviation was 3 years. Must null hypothesis be rejected?
Suppose a study is conducted to test the claim, at a 0.01 significance level, that less than 75% of college students spend less than $250 per semester on text books. A survey of 700 students found that 71% spent less than $250 per semester on text..
If 100 women are randomly selected, find the probability that they have a mean pregnancy between 266 days and 268 days.
In a speech to the Chamber of Commerce, a city councilman claims that in his city less than 15% of the adult male population is unemployed.
Smaller the p-value in test of hypothesis, the more important the results are.
Are the events "Republican" and "30-44" independent? Justify your answer. Are the events "Democrat" and "65+" independent? Justify your answer.
What is the distinction between a one-sided and a two-sided hypothesis test in this problem?
What is predicted value for National Health Expenditure as a % for 2010? What is the 95% confidence interval for your estimate? Does the trend continue? Does year impact expenditure?
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd