Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Hypothesis testing for one sample t-test.

An auditor reviewed 25 oral surgery insurance claims from a particular surgical office, determining that the mean out-of-pocket patient billing above the reimbursed amount was $275.66 with the standard deviation of $78.11.

(a) At the 5 percent level of significance, does this sample prove a violation of the guideline that the average patient should pay no more than $250 out-of-pocket? Condition your hypotheses and decision rule.

 (b) Is this a close decision?

 

Hypotheses:

H0: _ = 250 vs. _ > 250

Level of Significance:

5%

Decision Rule

Reject the null hypothesis if p-value < 0.05

Calculation:

Hypothesis Test: Mean vs. Hypothesized Value

Hypothesized value

250.0000

Mean Sample

275.6600

std. dev.

78.1100

std. error

15.6220

n

25

df

24

t

1.64

p-value (one-tailed, upper) 

.0568

 

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M918201

Have any Question? 


Related Questions in Statistics and Probability

In a study of smokers who tried to quit smoking with

In a study of smokers who tried to quit smoking with nicotine patch therapy, 39 were smoking one year after the treatment, and 32 were not smoking one year after the treatment. We want to use a .05 significance level to ...

Topicnbspstate party structurethreadnbspfirst review the

Topic:  State Party Structure Thread:  First, review the Reading & Study presentation "Political Structure at the State Level" as an example about the structure of the Republican Party in Virginia Select 1 of the major p ...

Dan is at the bottom of donnas preference list and donna is

Dan is at the bottom of Donna's preference list, and Donna is at the bottom of Dan's preference list. Is it possible that there is a stable matching that matches Dan to Donna? Justify your answer.

Anbsppsychologist would like to examine the effects of a

A psychologist would like to examine the effects of a new drug on the activity level of animals. Three samples of rats are selected with n = 5 in each sample. The rats in the first sample serve as a control and do not ge ...

1 use your own random mu sigma to generate four sets of

1) Use your own random (μ, σ) to generate four sets of (normal-distribution based) random numbers (i.e., samples) of sizes n = 5, 20, 80, and 320, respectively. 2) Calculate the means and standard deviations for the 4 sa ...

Using the table below compute the spearman rank correlation

Using the table below, compute the spearman rank correlation coefficient for the aggressiveness scores. Does this suggest that both twins tend to be similar in degrees of aggressiveness? Twin set 1 st  born aggressivenes ...

1 what are order effects and how does counterbalancing help

1. What are order effects, and how does counterbalancing help us deal with them? 2. Distinguish between treatment, confound, and error variance. 3. Which is worse--confound variance or error variance? Why?

The time it takes to complete a standardized exam is

The time it takes to complete a standardized exam is normally distributed with a mean of 70 minutes and a standard deviation of 10 minutes. How much time should be allowed for the exam so that 80% of the students will fi ...

1 a researcher has developed the hypothesis that teenagers

1. A researcher has developed the hypothesis that teenagers are better able to learn about and remember technological information than are older adults, whereas older adults are better able to remember information about ...

Three individuals are seated in a room each one of them is

Three individuals are seated in a room. Each one of them is wearing a hat, which may be either red or white. Each of them sees the hats worn by the others, but cannot see his own hat (and in particular does not know its ...

  • 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