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.
Communication is effective because it allows individuals to share ideas, thoughts, and information with others.
effective communication can lead to improved outcomes in various settings, including personal relationships, business environments, and educational settings. By communicating effectively, individuals can negotiate effectively, solve problems collaboratively, and work towards common goals.
it starts up serve and return practice/assessments.it helps find voice talking therapy also assessments through relaxed conversation.
miss
Every time someone flushes a toilet in the apartment building, the person begins to jumb back automatically after hearing the flush, before the water temperature changes. Identify the types of learning, if it is classical conditioning identify the NS, UCS, CS and CR. If it is operant conditioning, identify the type of consequence positive reinforcement, negative reinforcement or punishment
nature is an hereditary factor while nurture is an environmental factor which constitute an individual personality. so if an individual's parent has a deviant behavior and was also brought up in an deviant environment, observation of the behavior and the inborn trait we make the individual deviant.
Samuel
I am taking this course because I am hoping that I could somehow learn more about my chosen field of interest and due to the fact that being a PsyD really ignites my passion as an individual the more I hope to learn about developing and literally explore the complexity of my critical thinking skills
hello. autism is a umbrella term. autistic kids have different disorder overlapping. for example. a kid may show symptoms of ADHD and also learning disabilities.
before treatment please make sure the kid doesn't have physical disabilities like hearing..vision..speech problem. sometimes these
Jharna
continue..
sometimes due to these physical problems..the diagnosis may be misdiagnosed.
treatment for autism.
well it depends on the severity.
since autistic kids have problems in communicating and adopting to the environment.. it's best to expose the child in situations where the child
Jharna
child interact with other kids under doc supervision.
play therapy.
speech therapy.
Engaging in different activities that activate most parts of the brain.. like drawing..painting. matching color board game.
string and beads game.
the more you interact with the child the more effective
Jharna
results you'll get..
please consult a therapist to know what suits best on your child.
and last as a parent. I know sometimes it's overwhelming to guide a special kid.
but trust the process and be strong and patient as a parent.
Jharna
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