User Account

All Pages

Evaluate a null hypothesis based on analysis of data

Assignment Help Basic Statistics
Reference no: EM132202174

Hypothesis Testing and the z Score.

  • Criterion: Evaluate a null hypothesis based on analysis of data.
  • Data: Joan is 72 inches tall. The average (mean) height for adult women is 65 inches, and the standard deviation is 3.5 inches.

a. State the null hypothesis. 

b. State the alternative hypothesis.

c. Answer this: Joan is taller than what percentage of women in the population? (Hint: Think z score and area under the normal curve.) 

d. Answer this: Given Joan's height as compared to the population mean, do you expect to reject the null hypothesis? Explain your answer. 

Reference no: EM132202174

Questions Cloud

Throw the ring as you are blindfolded : What are the chances of getting the ring around a bottle of coke if you throw the ring as you are blindfolded?
Standard deviation of a hypothesis test : What is the Difference between the standard deviation of a hypothesis test that uses critical value and a hypothesis test that uses p values?
What does each property tell us about the curve : What two properties distinguish one normal probability curve from another? What does each property tell us about the curve?
Hand calculate a one-sample t test : Rex's Flower Shop advertised fresh cut roses that last longer than other roses. The mean vase life for a rose is 8 days. The following is a sample of the number
Evaluate a null hypothesis based on analysis of data : Evaluate a null hypothesis based on analysis of data.
Confidence interval for the average rating : Construct a? 95% confidence interval for the average rating given by a customer who waits 19 minutes.
How should pia mitigate the possible data security risks : How should Pia mitigate the possible data security risks? Is price an important factor when choosing the system?
Find the sample average value : If a sample of 87 artists was chosen, find the sample average value above which only 5% of sample averages would lie. Give your answer in dollars
How do the teams manage their team boundaries : How do the teams manage their team boundaries? What are the trade-offs between internal cohesion and external ties within each type of team?

Reviews

Write a Review

Basic Statistics Questions & Answers

  What is the probability that the student is a sophmore

At a certain college, there are 600 freshman, 400 sophomores, 300 juniors, and 200 seniors. if one student is selected at random.

  Find the standardized scores for students

SAT versus ACT Eleanor scores 680 on the SAT Mathematics test. The distribution of SAT scores is symmetric and single-peaked, with mean 500 and standard.

  Explain how information can be used by decision makers

Analyze these data and summarize your findings for managers. Explain how information can be used by decision makers. Assume that sales per customer are normally distributed.

  What is the probability that a male student will graduate

the american council of education reported that 47 of college freshmen earn a degree and graduate within five years

  A forester wishes to predict the volume in cubic feet of

a forester wishes to predict the volume in cubic feet of usable lumber in a certain species of trees from the height in

  Sketch a tree diagram to illustrate the possible outcomes

Carefully sketch a tree diagram to illustrate the possible outcomes for this experiment.- Find the sample space S for this experiment.

  Assume that an apptitude test are normally distributed

Assume that an apptitude test are normally distributed. if the mean score in on 140 points and standard deviation is 25 points. find the cut off passing grade such that 67% of those taking the exams pass?

  Determine the npv and the irr for the project

Please help with the below questions: Based on the following project assumptions, determine the NPV and the IRR for the project.

  Scores on a statistics exam are given 85 72 92 90 74 65 68

scores on a statistics exam are given 85 72 92 90 74 65 68 59 74 85 63 79 81 92 95 74 88 55.in preparation for

  Define the obversion and contraposition for adverse effects

No nonprescription drugs are medicines without adverse effects. Therefore, no medicines with adverse effects are prescription drugs.

  Which topic did you enjoy the least outliner

Which topic did you enjoy the least outliner? Explain why and be specific with your discussion, such as give an example.

  Probability that she accepts the entire shipment

A shipment of 20 hd television sets is received by a retailer. To protect herself against a bad shipment, she will inspect 5 sets and accept the entire lot if she observes either 0 or 1 defective. Suppose there are actually 7 defective sets in the..

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