Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.

Get a Professional Answer

Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.

100% Satisfaction Guarantee

Rate the answer you receive.

Ask Martin Your Own Question

Martin, Physicist

Category: Homework

Satisfied Customers: 765

Experience: 20+ years of research, engineering and teaching

47181708

Type Your Homework Question Here...

Martin is online now

1. calculate the sample size for a hypothesis test that will

Customer Question

1. calculate the sample size for a hypothesis test that will be required to detect an increase of 0.5σ from the mean of one population at α = 0.05 and β = 0.05? (Note: The population standard deviation is known use µ for the mean) (10 points)

2. The ACT exam has composite scores ranging from 1 to 36. It is generally thought that the mean composite score for the ACT is 20 points but it may have increased in the last years. SHOW ALL WORK PLZ

a)Write the null and alternative hypotheses.

b)Given n = 36, level of significance = 0.05, and Sigma= 5, Draw a normal curve and label “acceptance” and “rejection” regions. Find the value of x-bar that would cause us to reject the null hypothesis.

c)Draw the normal curves, label α and β regions, and hand-calculate the probability of a committing a Type II error, β, if the true population mean score is 21.2.

3. People were waiting in line to see a new movie. The following is the order in which males and females were in line. SHOW ALL WORK PLZ

F F M M M M M M F F F F M M M F F F F F M M M M M F F M M M

Test the sequence for randomness at the 0.05 level of significance.

THIS ANSWER IS LOCKED! You can view this answer by clicking here to Register or Login and paying $3. If you've already paid for this answer, simply Login.

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.

JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.

Web sites like justanswer.com/legal ...leave nothing to chance.

Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.

Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.

I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.Freshfield, Liverpool, UK

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.DianeDallas, TX