User Account

All Pages

Is sample significantly different than the population

Assignment Help Basic Statistics
Reference no: EM13147628

A researcher knows that the population mean among college students taking the Social Conformity Test is a "neutral" 100. (scores higher than 100 are assumed to represent more conformity than average, and those lower than 100 indicate less conformity). A random sample of 30 students was selected, and the following values were recorded:

sample mean = 103
sample standard deviation= 10.83
Is this sample significantly different than the population?
State the null and alternative hypotheses.

Reference no: EM13147628

Questions Cloud

What might prompt the government to establish this price : what might prompt the government to establish this price ceiling? next suppose that the government establishes a price floor of $4.60 for wheat. what will be the main effects of this price floor?
Company lobbied against requirments : Coca cola Amatil conducted a campaign against Australia's adoption of IFRSs in 2004. The company lobbied against requirments that meant coca cola Amatil's balance sheet values would have to be written down by as much as $ 1.9 billion.
What will happen to the equilibrium price and quantity : Suppose you are studying the market for shoes. Two events take place simultaneously. First, price of leather decreases, and second, consumers' income increases. What will happen to the equilibrium price and equilibrium quantity of shoes?
Explain treatment of the bicyclic chloride a with lithium : Treatment of the bicyclic chloride A with lithium in tetrahydrofuran (THF) gave the monocyclic product B, C9H9Li. In deuterated THF, B exhibited a single proton NMR signal at 6.72 ppm
Is sample significantly different than the population : A random sample of 30 students was selected, and the following values were recorded: Is this sample significantly different than the population? State the null and alternative hypotheses.
Search instead for is it legal to help a jurors : Search instead for is it legal to help a jurors that is on a case that ypou are working on outsde of the court house that have nothing to do with the case
What is ksp for this compound : The molar solubility of MnCO3 is 4.2 x 10-6 M. What is Ksp for this compound?
What is the temperature of the water in the tank : On a cold (5F) day 30 gallon per minute of water is being pumped from a well to a storage tank 100 ft above the level of the water in the well. The temperature of the well water is 35F. Although the storage tank and water lines are insulated,
What are the determinants of demand : What are the determinants of demand? What happens to the demand curve when any of these determinants change? What is the difference between change in demand and change in quantity demanded?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Average number of sticks of gum

A recent study stated that if a person chewed gum, the average number of sticks of gum he or she chewed daily was 8. To test the claim, a researcher selected a random sample of 36 gum chewers and found the mean number of sticks of gum chewed per d..

  Estimate standard deviation of the x distribution

Estimate the standard deviation of the x distribution. (Hint: Review the empirical rule and SD approximations). What is the probability that a healthy 10-week-old kitten will weigh less than 14 oz?

  Find that mean weight produced by machine has increased

This sample has a mean weight of 5.03 Kg and a standard deviation of 0.21 Kg. Can we calculate that the mean weight produced by the machine has increased? Use 5% level of significance.

  Find lines experiences a surface finish problem

A single plant operates three galvanizing lines that are assumed to operate independently. What is the probability that none of the lines experiences a surface finish problem in 40 hours of operation.

  Niagara falls differs from the mean reported by the american

A survey conducted by the American Automobile Association showed that the family of four spends an average of $215.60 per day while on vacation. Suppose a sample of 64 families of four vacationing at Niagara Falls results in a sample mean of $252...

  Business statistics hypothesis example

Suppose we sample five boys and five girls, and find that the average height of the boys is 0.5 inches more than the average height of the girls.

  Statistical analysis-standard deviation

A researcher is interested in estimating noise levels in decibels at area urban hospitals. She wants to be 90% confident that her estimate is correct. If the standard deviation is 4.13, how large a sample is required to get the desired information..

  Probability-birthdays of twelve people fall-twelve months

What is the probability that (a) the birthdays of twelve people will fall in twelve di?erent calendar months (assume equal probabilities for the twelve months).

  Question on hypothesis testing-confidence interval

Consider that 10 observations were selected from a normal population whose variance is 64. Observations are: 58, 62, 45, 50, 59, 65, 39, 40, 41 and 52.

  Computing mean and standard deviation for sample

Compute mean and standard deviation for sample of N = 8 females and sample of N = 8 for males.

  Standard error of the difference between two proportions

The results of a recent poll on the preference of shoppers regarding two products are shown below.

  Variability in the traffic situation

However, due to the variability in the traffic situation every morning, the standard deviation of these commutes is 5 minutes. Jenn has to be at work by 8:30 A.M. every morning.

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