Question

In: Statistics and Probability

Which of the following pairs of hypotheses are used to test if the mean of the...

Which of the following pairs of hypotheses are used to test if the mean of the first population is smaller than the mean of the second population, using independent random sampling?

Multiple Choice

A. H0: µD0, HA: µD >0

B. H0: µD0, HA: µD <0

C. H0: µ1 – µ2 0, HA: µ1 – µ2< 0

D. H0: µ1 – µ2 0, HA: µ1 – µ2> 0

Please let me know A, B, C, or D. And a reason why. Thank you.

Solutions

Expert Solution


Related Solutions

Explain the following: Concepts of Hypothesis Testing Hypotheses Test for a population mean Hypothesis test for...
Explain the following: Concepts of Hypothesis Testing Hypotheses Test for a population mean Hypothesis test for a population proportion Test of normality Chi-Square Test for Independence
Question 4 Consider the following hypotheses: H0: mean = 5 H1: mean < 5 A test...
Question 4 Consider the following hypotheses: H0: mean = 5 H1: mean < 5 A test is performed with a sample of size 25. The sample mean was 4.67 and the population standard deviation is 1.2. Assume that the population is approximately normal. Use the TI-84 PLUS calculator to compute the P-value. Question 5 Consider the following hypotheses: H0: mean = 9 H1: mean > 9 A test is performed with a sample of size 49. The sample mean was...
For which of the following research designs would a matched pairs test be ideal? a) You...
For which of the following research designs would a matched pairs test be ideal? a) You have data on the mean income of residents in 45 different cities from the 2010 census and income information on the same cities in 2018 and you want to see if average incomes have increased from 2010 to 2018 b) You have data on how a random sample of voters plan to vote before the most recent debate, and how another random sample in...
For each of the following pairs of hypothetical data sets, decide which mean is larger and...
For each of the following pairs of hypothetical data sets, decide which mean is larger and which standard deviation is larger. Explain your reasoning. 1. price of menu items at a fancy restaurant in Seattle price of menu items at a fast food restaurant in Seattle 2. Weight of pet cats Weight of pet dogs 3. Salary of teachers in Seattle Salary of tech workers in Seattle
Test the following hypotheses by using the χ2 goodness of fit test.
You may need to use the appropriate technology to answer this question. Test the following hypotheses by using the χ2 goodness of fit test. H0: pA = 0.40, pB = 0.40, and pC = 0.20 Ha: The population proportions are not pA = 0.40, pB = 0.40, and pC = 0.20. A sample of size 200 yielded 60 in category A, 120 in category B, and 20 in category C. Use α = 0.01 and test to see whether the...
Which of the following solvent pairs could be used in a solvent pair recrystallization (in general,...
Which of the following solvent pairs could be used in a solvent pair recrystallization (in general, not for this specific reaction)? For those selected, briefly explain why. For those not selected, briefly explain why not: a) Ethyl acetate and hexane b) Water and diethyl ether c) Methanol and methylene chloride
Which of the following pairs of accounts are used in computing a city’s budgetary cushion? Select...
Which of the following pairs of accounts are used in computing a city’s budgetary cushion? Select one: a. cash and restricted fund balance b. cash and investments c. unassigned fund balance and assigned fund balance d. quick assets and taxes receivable Current guidance suggests that a “reasonable” budgetary cushion intended to enable local governments to weather economic contractions and unforeseen emergency needs should fall within which of these ranges, as a percentage of General Fund revenues and transfers in? Select...
Which reagent(s) may be used to distinguish between each of the following pairs of compounds? Select...
Which reagent(s) may be used to distinguish between each of the following pairs of compounds? Select a test that gives positive results with one compound of the pair and negative results with the other compound.Explain what will be observed in each case. (a) 1-butanol and butanal (b) toluene and acetophenone
Discuss how to conduct hypotheses test for a population mean with known and unknown standard deviations
Discuss how to conduct hypotheses test for a population mean with known and unknown standard deviations
1. Clear statement of hypotheses, with the correct parameter(s) 2. An indication of the test used...
1. Clear statement of hypotheses, with the correct parameter(s) 2. An indication of the test used 3. The test statistic and p-value 4. An indication of the statistical decision (i.e. whether or not to reject Ho)      along with an explanation. 5. An interpretation of the statistical decision in the context of the problem. #1)   The annual salaries for a random sample of 16 actuaries working in New York have a standard deviation of $16,000.   The annual salaries of a...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT