Question
In: Statistics and Probability
A retail branch of a bank is interested in determining whether the proportion of females who...
A retail branch of a bank is interested in determining whether the proportion of females who transact at the counter is higher than males. The gender of 500 randomly selected customers (Female is 284, male is 216) At a 10% significance level, does the data provide sufficient evidence to conclude that the proportion of females who transact at the counter is higher than males? Then, test whether the proportion of females who perform transactions at the counter is higher than 0.5. Determine the p-value and interpret the result.
Solutions
orchestra answered 2 years agoRelated Solutions
The manager at the Lawrence National Bank is interested in determining whether there is a difference...
The manager at the Lawrence National Bank is interested in
determining whether there is a difference in the mean time that
customers spend completing their transactions depending on which of
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simple random samples of 15 customers for each of the tellers and
has timed them (in seconds) from the moment they start their
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the teller station. The...
The manager at the Lawrence National Bank is interested in determining whether there is a difference...
The manager at the Lawrence National Bank is interested in
determining whether there is a difference in the mean time that
customers send completing their transactions depending on which of
the four tellers they use. To conduct the test, the manager has
selected simple random samples of 15 customers for each of the
tells and has time them (in seconds) from the moment they start the
transaction to the time the transaction is complete and they leave
the teller station....
A university dean is interested in determining the proportion of students who receive some sort of...
A university dean is interested in determining the proportion of
students who receive some sort of financial aid. Rather than
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Using a 95% confidence interval, what is the upper limit of the
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Using a 95% confidence interval, what is the upper limit of the
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A social scientist is interested in determining if there is a significant difference in the proportion...
A social scientist is interested in determining if there is a
significant difference in the proportion of people who report
working full time between two groups: those with a high school
education or less (Group 1) and those with an associates’s degree
or higher (Group 2). Using data from the General Social Survey, the
researcher obtains the following table:
Education Working Full Time Other Employment Status Total
No College (Group 1) 500 764 1264
At Least Some College (Group 2)...
A social scientist is interested in determining if there is a significant difference in the proportion...
A social scientist is interested in determining if there is a
significant difference in the proportion of people who report
working full time between two groups: those with a high school
education or less (Group 1) and those with an associates’s degree
or higher (Group 2). Using data from the General Social Survey, the
researcher obtains the following table:
Education
Working Full Time
Other Employment Status
Total
No College (Group 1)
500
764
1264
At Least Some College (Group 2)...
Researchers wanted to compare the proportion of females who are left-handed to the proportion of males...
Researchers wanted to compare the proportion of females who are
left-handed to the proportion of males who are left-handed. The
researchers randomly selected 815 females and 575 males. They
observed that 66 of the females and 60 of the males were
left-handed.
Test the claim that the proportion of females who are
left-handed is lower than the proportion of males who are
left-handed. Test the claim at the 5% significance level.
Credit will be given for a complete analysis that...
Researchers wanted to compare the proportion of females who are left-handed to the proportion of males...
Researchers wanted to compare the proportion of females who are
left-handed to the proportion of males who are left-handed. The
researchers randomly selected 815 females and 575 males. They
observed that 66 of the females and 60 of the males were
left-handed. Test the claim that the proportion of females who are
left-handed is lower than the proportion of males who are
left-handed. Test the claim at the 5% significance level.
the leaders of the study are interested in the determining whether there is a difference in...
the leaders of the study are interested in the determining
whether there is a difference in mean annual contributions for
individuals covered by TSA's and those with 401(k) retirements
program. you can use the results form the following table to test
if the population mean of individual covered by TSAs is higher than
those covered by 401(k).
TSA 401(K)
n1 = 8 n2=10
x1= 322.5 x2=298.3
s1=48.3 s2= 53.3
1. Formulate the appropriate null and alternative hypotheses
2....
a. The marketing manager for an automobile manufacturer is interested in determining the proportion of new...
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a. The marketing manager for an automobile manufacturer is interested in determining the proportion of new...
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interested in determining the proportion of new compact-car owners
who would have purchased a passenger-side inflatable air bag if it
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Suppose that a survey of 200 new compact-car owners is selected and
79 indicate that they would have purchased the inflatable air bags.
If you were to conduct a test to...
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