Hypothesis testing of a single mean and single proportion
Class Time:
Names:
Student learning outcomes
The student will select the appropriate distributions to use in each case.
The student will conduct hypothesis tests and interpret the results.
Television survey
In a recent survey, it was stated that Americans watch television on average four hours per day. Assume that
σ = 2. Using your class as the sample, conduct a hypothesis test to determine if the average for students at your school is lower.
H
0 : _____________
H
a : _____________
In words, define the random variable. __________ = ______________________
The distribution to use for the test is _______________________.
Determine the test statistic using your data.
Draw a graph and label it appropriately.Shade the actual level of significance.
Graph:
Determine the
p -value.
Do you or do you not reject the null hypothesis? Why?
Write a clear conclusion using a complete sentence.
Language survey
About 42.3% of Californians and 19.6% of all Americans over age five speak a language other than English at home. Using your class as the sample, conduct a hypothesis test to determine if the percent of the students at your school who speak a language other than English at home is different from 42.3%.
H
0 : ___________
H
a : ___________
In words, define the random variable. __________ = _______________
The distribution to use for the test is ________________
Determine the test statistic using your data.
Draw a graph and label it appropriately. Shade the actual level of significance.
Graph:
Determine the
p -value.
Do you or do you not reject the null hypothesis? Why?
Write a clear conclusion using a complete sentence.
Jeans survey
Suppose that young adults own an average of three pairs of jeans. Survey eight people from your class to determine if the average is higher than three. Assume the population is normal.
H
0 : _____________
H
a : _____________
In words, define the random variable. __________ = ______________________
The distribution to use for the test is _______________________.
Determine the test statistic using your data.
Draw a graph and label it appropriately. Shade the actual level of significance.
Graph:
Determine the
p -value.
Do you or do you not reject the null hypothesis? Why?
Write a clear conclusion using a complete sentence.
Questions & Answers
Ayele, K., 2003. Introductory Economics, 3rd ed., Addis Ababa.
what's the difference between a firm and an industry
Abdul
firm is the unit which transform inputs to output where as industry contain combination of firms with similar production 😅😅
Abdulraufu
Suppose the demand function that a firm faces shifted from
Qd 120 3P
to
Qd 90 3P
and the supply function has shifted from
QS
20 2P
to
QS
10 2P .
a) Find the effect of this change on price and quantity.
b) Which of the changes in demand and supply is higher?
Demand curve shows that how supply and others conditions affect on demand of a particular thing and what percent demand increase whith increase of supply of goods
Israr
Hi Sir please how do u calculate Cross elastic demand and income elastic demand?
Abari
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