Is the difference significant at the one percent level

Assignment Help Basic Statistics
Reference no: EM13120334

Suppose you wish to test the hypothesis that the students at university A are, on the average, younger than students at university B. A random sample of 80 students is drawn from university A and it is found that their mean age is 22.1 with a standard deviation of 2.6, while a random sample of 64 students from university B is found to have a mean of 23.5 with a standard deviation of 2.3. The samples do indicate that university A's students are younger than university B's; but is the difference significant at the 1% level?

Reference no: EM13120334

Questions Cloud

Algebra problems-academic response : Write the following phrase using symbols. 4 times the sum of m and q. Elaine was charged $195 interest for 1 month on a $1000 credit card balance. What was the monthly interest rate
What will the temperature be : If you drop 25 g warm nails initial temp 65.4 into coffee cup calorimeter that contains 100.0 g water at 20 degrees Celsius, what will the temperature be.
Is the difference significant at the one percent level : The samples do indicate that university A's students are younger than university B's; but is the difference significant at the 1% level?
Find the probability that the mean of their scores : .With the conditions of problem 1, if 20 students are selected , what is the probability that the mean of their scores is greater than 18?
Is the difference significant at the one percent level : The samples do indicate that university A's students are younger than university B's; but is the difference significant at the 1% level?
Problem related to weighted-average cost of capital : Gordon uses a minium desired rate of return of 12% for selecting new projets and for evaluating the three divisions using residual income (RI). The firm's weighted-average cost of capital is 8%.
Factorization strategy : Can you please explain a general strategy for factoring in a very organized way. Give an example if possible.
Illustrate how much ice must melt in order to cool hot water : Illustrate how much ice must melt in order to cool the hot water down to this temperature?
What was the stockholders equity : On January 1, 2010, NWK, Inc.'s assets were $300,000 and its stockholders' equity was $140,000. During the year, assets increased $15,000 and liabilities decreased $10,000. What was the stockholders' equity on December 31, 2010?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Confidence interval for difference between population mean

Provide a 95% confidence interval for the difference between the two population means. Compare the means of population 1 and population 2. Are they equal? Show your test procedure.

  Best scenario for the bank using a decision tree analysis

If there is an outage, there is a .05 probability that the resulting losses will be very large, approximately $ 80 million in lost earnings. Also, it is estimated that there is a .95 probability of only slight losses of around $ 1 million. What is..

  Relation between mortality from cirrhosis

Perform a significance test to assess whether there is an association between mortality from cirrhosis of the liver and duration of employment in the group hired after 1945. Report a p-value.

  Confidence interval for the true percentage of all household

Find a 96% confidence interval for the true percentage of all households that have central air conditioning.  Write a sentence that interprets this interval.

  Probability depends on normal distribution

Probability depends on normal distribution. If a random sample of nine 18 year old men is selected illustrate what is the probability that the mean height

  Population standard deviation-drug manufacturer

A drug manufacturer wants to estimate the effect of its new drug designed to increase patients white blood cell count.

  Probability of selecting gloves randomly

A box of 9 gloves contains two left handed gloves and seven right handed gloves. If two gloves are randomly selected from the box, without replacement, what is the probability that both gloves will be right handed?

  Explanation of null and alternative hypotheses

We are doing a team project for our statistics class and our project is about "Math Anxiety". We are stuck on one question and the questions is "the teams will state the null and alternative hypotheses

  Significant relief from their symptoms

In a clinical study of an allergy drug, 112 of the 210 subjects reported experiencing significant relief from their symptoms. At the 0.01 significance level,

  Discuss the locations of the mean-median and mode

Investigate the comparative pros and cons of the mean and the median. Find examples where the mean is more appropriate than the median and vice-versa. Discuss the locations of the mean, median and mode for a normal, left-skewed and right-skewed di..

  Correct description for empirical rule

A population of data from a paper supply company is known to have a mean weight of 55 ounces per ream and a population standard deviation of 5 ounces. The population is known to be bell shaped and symmetrical. Which of the following statements is ..

  Confidence interval for the average number of hours

A market researcher wants to find the 99% Confidence Interval for the average number of hours people spend online each day.

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd