Hypothesis testing for two means and two proportions
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.
Supplies:
the business section from two consecutive days’ newspapers
three small packages of M&Ms®
five small packages of Reese's Pieces®
Increasing stocks survey
Look at yesterday’s newspaper business section. Conduct a hypothesis test to determine if
the proportion of New York Stock Exchange (NYSE) stocks that increased is greater than theproportion of NASDAQ stocks that increased. As randomly as possible, choose 40 NYSE
stocks, and 32 NASDAQ stocks and complete the following statements.
H
0 : _________
H
a : _________
In words, define the random variable.
The distribution to use for the test is _____________.
Calculate the test statistic using your data.
Draw a graph and label it appropriately. Shade the actual level of significance.
Graph:
Calculate the
p -value.
Do you reject or not reject the null hypothesis? Why?
Write a clear conclusion using a complete sentence.
Decreasing stocks survey
Randomly pick eight stocks from the newspaper. Using two consecutive days’ business sections, test whether the stocks went down, on average, for the second day.
H
0 : ________
H
a : ________
In words, define the random variable.
The distribution to use for the test is _____________.
Calculate the test statistic using your data.
Draw a graph and label it appropriately. Shade the actual level of significance.
Graph:
Calculate the
p -value:
Do you reject or not reject the null hypothesis? Why?
Write a clear conclusion using a complete sentence.
Candy survey
Buy three small packages of M&Ms and five small packages of Reese's Pieces (same net weight as the M&Ms). Test whether or not the mean number of candy pieces per package is the same for the two brands.
H
0 : ________
H
a : ________
In words, define the random variable.
What distribution should be used for this test?
Calculate the test statistic using your data.
Draw a graph and label it appropriately. Shade the actual level of significance.
Graph:
Calculate the
p -value.
Do you reject or not reject the null hypothesis? Why?
Write a clear conclusion using a complete sentence.
Shoe survey
Test whether women have, on average, more pairs of shoes than men. Include all forms of sneakers, shoes, sandals, and boots. Use your class as the sample.
H
0 : ________
H
a : ________
In words, define the random variable.
The distribution to use for the test is ________________.
Calculate the test statistic using your data.
Draw a graph and label it appropriately. Shade the actual level of significance.
Graph:
Calculate the
p -value.
Do you reject or not reject the null hypothesis? Why?
Write a clear conclusion using a complete sentence.
is it possible to leave every good at the same level
Joseph
I don't think so. because check it, if the demand for chicken increases, people will no longer consume fish like they used to causing a fall in the demand for fish
Anuolu
is not really possible to let the value of a goods to be same at the same time.....
Salome
Suppose the inflation rate is 6%, does it mean that all the goods you purchase will cost
6% more than previous year? Provide with reasoning.
Not necessarily. To measure the inflation rate economists normally use an averaged price index of a basket of certain goods. So if you purchase goods included in the basket, you will notice that you pay 6% more, otherwise not necessarily.
Good day
How do I calculate this question: C= 100+5yd G= 2000 T= 2000 I(planned)=200.
Suppose the actual output is 3000. What is the level of planned expenditures at this level of output?
I am Camara from Guinea west Africa... happy to meet you guys here
Sekou
ma management ho
Amisha
ahile becheclor ho
Amisha
hjr ktm bta ho
ani k kaam grnu hunxa tw
Amisha
belatari
Amisha
1st year ho
Amisha
nd u
Amisha
ahh
Amisha
kaha biratnagar
Amisha
ys
Amisha
kina k vo
Amisha
money as unit of account means what?
Kalombe
A unit of account is something that can be used to value goods and services and make calculations
Jim
all of you please speak in English I can't understand you're language
Muhammad
I want to know how can we define macroeconomics in one line
Muhammad
it must be .9 or 0.9
no Mpc is greater than 1
Y=100+.9Y+50
Y-.9Y=150
0.1Y/0.1=150/0.1
Y=1500
Kalombe
Mercy is it clear?😋
Kalombe
hi can someone help me on this question
If a negative shocks shifts the IS curve to the left, what type of policy do you suggest so as to stabilize the level of output?
discuss your answer using appropriate graph.