Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

To find out sample mean and sample standard deviation for the given set of data. Formulation of null and alternate hypothesis to test the claim regarding the instructor's recommendation that students devote 3 hours per week for the duration of the 13-week semester, for a total of 39 hours.

At the beginning of course of Statistical Methods I, the instructor recommended that students devote 3 hours per week for the duration of the 13-week semester, for a total of 39 hours. It is known that the times spent on studying statistics follow a normal distribution.  All through the course's duration, students were claiming that they were following the instructor's recommendation.  At the course's completion, a random sample of 10 students enrolled in the course was drawn where each student was asked how many hours he or she spent doing homework in statistics.  The data are listed below:

 

45

38

37

40

44

38

46

37

42

43

 

Estimate and interpret the p-value of the find outd test statistic above. 

While dealing with 16 students, suppose that the alternative hypothesis has been one-sided and that it was set as Ha: A.A < 39.  Create a graph to visualize the problem.

Using the original data, test at the 5 percent significance level that population standard deviation of studying times is greater than 4 hours.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921019

Have any Question? 


Related Questions in Statistics and Probability

A box of teddy grahams chocolate cookies is supposed to

A box of Teddy Grahams chocolate cookies is supposed to weigh 250 grams. There is some variation in weight from box to box. The box contents are Normally distributed with an unknown mean and a known standard deviation of ...

Purpose of the studythis current research study is a

Purpose of the Study This current research study is a quantitative study. The aim of this research study is to investigate the levels of self-efficacy and to determine whether there is a relationship in quality of life a ...

In juliuss list of preferences agrippina appears first

In Julius's list of preferences, Agrippina appears first, Messalina appears second, and Cleopatra appears third. Suppose there is a stable matching under which Julius is matched to Agrippina, and that there is a stable m ...

Asume that you plan to use a significance level of alpha

Assume that you plan to use a significance level of α = 0.05 to test the claim that p1 = p2. Use the given sample sizes and numbers of successes to find the P-value for the hypothesis test. n1 = 50 n2 = 50 x1 = 8 x2 = 7

In january 2011 the average monthly rental rate for

In January 2011, the average monthly rental rate for one-bedroom apartments in a certain city was $783. Suppose rental rates across all one-bedroom apartments in this city follow approximately a normal distribution, with ...

How did the supreme court aid the development of a market

How did the Supreme Court aid the development of a market economy?

In a random sample of 10 reduced fat chocolate chip cookies

In a random sample of 10 reduced fat chocolate chip cookies, the sample mean for the number of chocolate chips was 17.6.  Regular chocolate chip cookies have a mean number of 20 chocolate chips.  The population standard ...

Hypothesesh0 there is no correlation between hours walking

Hypotheses H0 There is no correlation between hours walking and weight loss. H1 There is a positive correlation between hours walking and weight. H2 There is a negative correlation between hours walking and weight loss. ...

The time spentin days waiting for a heart transplant in two

The time spent(in days) waiting for a heart transplant in two states for patients with type A+ blood can be approximated by a normal distribution, as shown in the graph to the right. Complete parts(a) and(b) below. μ = 1 ...

1 how does the sample size influence the extent to which

1. How does the sample size influence the extent to which the sample data can be used to accurately estimate population parameters? 2. What statistics are used to indicate how accurately the sample data can predict popul ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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