Question
In: Math
An education researcher claims that 62% of college students work year-round. In a random sample of...
An education researcher claims that 62% of college students work year-round. In a random sample of 200
college students, 124 say they work year-round. At alpha equals=0.010, is there enough evidence to reject the researcher's claim?
A.) What is the critical value?
B.) What is the rejection region?
C.) What is the standardized test statistic z?
D.) Should the null hypothesis be rejected?
Solutions
milcah answered 9 months agoRelated Solutions
An education researcher claims that 62% of college students work year round. in a random sample...
An
education researcher claims that 62% of college students work year
round. in a random sample of 200 college students, 124 say they
work year round. At a =0.01.
what is the critical values?
what is standardized test statistic?
Identify the P-value?
reject or fail to reject?
an education researcher claims that 54% of college students work year round. in a random sample...
an
education researcher claims that 54% of college students work year
round. in a random sample of 200 college students 108 say they work
year round at alpha =0.10, is there enough evidence to reject the
reseachers claim
An education researcher claim that 57% of college student work year round. In a random sample...
An
education researcher claim that 57% of college student work year
round. In a random sample of 300 collgege students, 171 say they
work year round. a= 0.01, is there enough evidence to reject
?
An education researcher claims that at most 8% of working college students are employed as teachers...
An education researcher claims that at most 8% of working
college students are employed as teachers or teaching assistants.
In a random sample of 300 working college students, 9% are
employed as teachers or teaching assistants. At alphaαequals=0.05,
is there enough evidence to reject the researcher's claim?
1) Find the standardized test statistic z
z= ???
2) Reject or fail to reject the hypothesis and why???
Please explain all answers! Thank you!!
In a random sample of 62 college students we find that 45 of them eat out...
In a random sample of 62 college students we find that 45 of
them eat out at least once a week. Someone tells me that 75% of
college students eat out at least once a week. Run a hypothesis
test to see if the true proportion of college students that eat out
at least once a week is different than 75%
A random sample of 900 college students found that 62% study outside of the class less...
A random sample of 900 college students found that 62% study
outside of the class less than 2 hours per week. Construct a 90%
confidence interval for the proportion of students who study less
than 2 hours per week [5 points] . Interpret the results using
complete sentences. [5 points]
A researcher at the college used a random sample of 30 students to investigate sleep patterns...
A researcher at the college used a random sample of 30 students
to investigate sleep patterns of two groups. The output below was
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students who have early classes versus students who do not have
early classes.
The hours of sleep for both group of students are stored in
EarlyClass.xlsx. Download and open this file into Excel. Use Excel
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below.
NoEarlyClass...
An education researcher claims that stipends for PhD students have increased from one academic year to...
An education researcher claims that stipends for PhD students
have increased from one academic year to the next. The table shows
the PhD stipends (in dollars per year) for seven randomly chosen,
different fields of study at various institutions in two
consecutive years. Assume the populations are normally distributed.
At α=0.05 , is there enough evidence to support the education
researcher’s claim? Place commas between the 7 answers for parts a.
and b. Field of Study 1 2 3 4...
A researcher drew a random sample of 57 college students and asked whether they knew how...
A researcher drew a random sample of 57 college students and
asked whether they knew how to properly recycle e-waste. The
researcher also asked them their academic major (whether they were
a computer science major "yes" or "no"). The researcher obtained
the results in the table below. Open the M15 Data File and follow
the instructions on how to run a chi-square test in SPSS.
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No
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5...
. A researcher took a random sample of 600 college students and surveyed them about how...
. A researcher took a random sample of 600 college students and
surveyed them about how many days of class they missed per
semester. On average, the sample missed 3.1 days of class. If the
sample standard deviation is .45, construct a confidence interval
to estimate the true population mean at the 95% confidence level
(.05 alpha level). Make sure to interpret your results in a
sentence or two! (HINT: Make sure you use the correct formula for
this question,...
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