Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

An advertisement for the particular tax preparation software package claims you can complete your taxes in less than 56 minutes. A random selection of the 49 individual's tax preparation times (using software) was gathered, and their mean was computed to be 55 minutes. It is known that the standard deviation is four minutes. Test the hypotheses for problems 10, 11, and 12:

H0: μ ≥ 56

Ha: μ < 56(Claim)

1. Compute test statistic:

2. Find out the p-value of test-statistic:

3. Is there enough evidence to sustain the claim at significance level alpha = .05? Why?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922036

Have any Question? 


Related Questions in Statistics and Probability

Onenbspstudy based on responses 1014nbsprandomly

One study, based on responses 1,014 randomly selected teenagers, concluded that 39% of teenagers cite grades as their greatest source of pressure. Use a 0.05 significance level to test the claim that fewer than half of a ...

What issues did the third world radicalism address how

What issues did the third world radicalism address? How successful were their leaders in implementing their goals? Answer has to be a page minimum

At a local college 316 of the male students are smokers and

At a local college, 316 of the male students are smokers and 474 are non-smokers. Of the female students, 70 are smokers and 630 are non-smokers. A male student and a female student from the college are randomly selected ...

The manager of the cheesecake factory in boston reports

The manager of The Cheesecake Factory in Boston reports that on six randomly selected weekdays, the number of customers served was 120, 130, 100, 205, 185, and 220. She believes that the number of customers served on wee ...

In randomized double-blind clinical trials of a new vaccine

In randomized, double-blind clinical trials of a new vaccine, monkeysmonkeys were randomly divided into two groups. Subjects in group 1 received the new vaccine while subjects in group 2 received a control vaccine. After ...

Consider a sealed-bid second-price auction with two buyers

Consider a sealed-bid second-price auction with two buyers, whose private values are independent; buyer 1's private value is uniformly distributed over [0, 1], and buyer 2's private value is uniformly distributed over [0 ...

An observational study is conducted to investigate the

An observational study is conducted to investigate the association between age and total serum cholesterol. The correlation is estimated at r=0.35. The study involves n=125 participants and the mean (std dev) age is 44.3 ...

At stats high there is a difficult exam that every junior

At Stats High, there is a difficult exam that every junior takes. Over the last 5 years, the exam results are normally distributed with a mean of 35% and a standard deviation of 7%. If your friend takes the exam and rece ...

Historically 25 of all students taking an statistics course

Historically 25% of all students taking an statistics course have failed (i.e. receive a grade below C). Professor Han thinks that she has a better method of teacher statistics to business students. She is given a random ...

A new study provides some evidence that playing action

A new Study provides some evidence that playing action video games strengths a person's ability to translate sensory information into accurate decisions. Researchers had 23 male volunteers with an average age of 20 look ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen