Question

A data set includes data from student evaluations of courses. The summary statistics are

n=83,

x=3.43,

s=0.55.

Use a

0.01

significance level to test the claim that the population of student course evaluations has a mean equal to

3.50.

Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim.

Determine the test statistic.

(Round to two decimal places as needed.)

Determine the P-value.

Answer #1

Answer:

here null hypothesis i.e. Ho :the population of student course
evaluations has a mean equal to 3.50. and

alternative hypotheisi is H1:the population of student course evaluations has a mean not equal to 3.50.

Here, n=83, x(statistic)=3.43, s=0.55 , alpha=0.01 and parameter is 3.5

test statistics is t=( statistic- parameter) / standard error

standard error = s/√n =0.55/ square root (83)

=0.06037

now t= (3.43-3.5)/0.06037

t= -1.16

p value is t value at (0.01,(83-1))= 2.637

here |t| calulated value is 1.16 which is less than tabulated t value 2.637

Hence the null hypothesis is fail to reject. The population of student course evaluations has a mean equal to 3.50.

A data set includes data from student evaluations of courses.
The summary statistics are n=84, xbar =3.42 s=0.56
Use a 0.01 significance level to test the claim that the
population of student course evaluations has a mean equal to
3.50.
Assume that a simple random sample has been selected. Identify
the null and alternative hypotheses, test statistic, P-value, and
state the final conclusion that addresses the original claim.
What are the null and alternative hypotheses?
Determine the test statistic.
Determine...

A data set includes data from student evaluations of courses.
The summary statistics are
n=90,
x=3.32,
s=0.68.
Use a 0.05 significance level to test the claim that the
population of student course evaluations has a mean equal to
3.50.
Assume that a simple random sample has been selected. Identify
the null and alternative hypotheses, test statistic, P-value, and
state the final conclusion that addresses the original claim.
What are the null and alternative hypotheses?
Determine the test statistic.
State the...

A data set includes data from student evaluations of courses.
The summary statistics are n=86, x=4.19, s=0.65 Use a 0.05
significance level to test the claim that the population of student
course evaluations has a mean equal to 4.25 Assume that a simple
random sample has been selected. Identify the null and alternative
hypotheses, test statistic, P-value, and state the final
conclusion that addresses the original claim.
Determine the test statistic.
Determine the P-value.
State the final conclusion that addresses...

A data set includes data from student evaluations of courses.
The summary statistics are n=86, x bar=3.33, s=0.62. Use a 0.05
significance level to test the claim that the population of student
course evaluations has a mean equal to 3.50. Assume that a simple
random sample has been selected. Identify the null and alternative
hypotheses, test statistic, p-value, and state the final conclusion
that addresses the original claim.

A data set includes data from student evaluations of courses.
The summary statistics are n=91, x =3.67, s=0.68 Use a 0.01
significance level to test the claim that the population of student
course evaluations has a mean equal to 3.75 , Assume that a simple
random sample has been selected. Identify the null and alternative
hypotheses, test statistic, P-value, and state the final
conclusion that addresses the original claim.

A data set includes data from student evaluations of courses.
The summary statistics are nequals94, x overbarequals4.17,
sequals0.63. Use a 0.01 significance level to test the claim that
the population of student course evaluations has a mean equal to
4.25. Assume that a simple random sample has been selected.
Identify the null and alternative hypotheses, test statistic,
P-value, and state the final conclusion that addresses the original
claim.

A data set includes data from student evaluations of courses.
The summary statistics are nequals93, x overbarequals4.15,
sequals0.59. Use a 0.01 significance level to test the claim that
the population of student course evaluations has a mean equal to
4.25. Assume that a simple random sample has been selected.
Identify the null and alternative hypotheses, test statistic,
P-value, and state the final conclusion that addresses the original
claim.

A data set includes data from student evaluations of courses.
The summary statistics are n equals=92, x equals=4.09, s
equals=0.62. Use a 0.05 significance level to test the claim that
the population of student course evaluations has a mean equal to
4.25. Assume that a simple random sample has been selected.
Identify the null and alternative hypotheses, test statistic,
P-value, and state the final conclusion that addresses the original
claim.
What are the null and alternative hypotheses?
Determine the test...

A data set includes data from student evaluations of courses.
The summary statistics are nequals=8484, x
overbarxequals=3.693.69, sequals=0.660.66. Use a 0.100.10
significance level to test the claim that the population of student
course evaluations has a mean equal to 3.753.75. Assume that a
simple random sample has been selected. Identify the null and
alternative hypotheses, test statistic, P-value, and state the
final conclusion that addresses the original claim.
b) Determine the test statistic.
c)Determine the P-value.
d) State the final...

A data set includes data from student evaluations of courses.
The summary statistics are n=99, x=3.92, s=0.58. Use a 0.05
significance level to test the claim that the population of student
course evaluations has a mean equal to 4.00. Assume that a simple
random sample has been selected. Identify the null and alternative
hypotheses, test statistic, P-value, and state the final
conclusion that addresses the original claim.

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 19 minutes ago

asked 39 minutes ago

asked 58 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 3 hours ago