Question
In: Statistics and Probability
Consider the hypotheses shown below. Given that x overbarxequals=40, sigmaσequals=13, nequals=31, alphaαequals=0.01, complete parts a and...
Consider the hypotheses shown below. Given that
x overbarxequals=40,
sigmaσequals=13,
nequals=31,
alphaαequals=0.01,
complete parts a and b.
Upper H 0H0:
muμless than or equals≤38
Upper H 1H1:
muμgreater than>38
a) What conclusion should be drawn?
b) Determine the p-value for this test.
a) The z-test statistic is
.86.
(Round to two decimal places as needed.)
The critical z-score(s) is(are) ?
Reject or fail to reject, why or why not?
p-value?
Solutions
orchestra answered 2 years agoRelated Solutions
Consider the hypotheses shown below. Given that x overbarxequals=57, sigmaσequals=12, nequals=37, alphaαequals=0.10, complete parts a and...
Consider the hypotheses shown below. Given that
x overbarxequals=57,
sigmaσequals=12,
nequals=37,
alphaαequals=0.10,
complete parts a and b.
Upper H 0H0:
muμless than or equals≤55
Upper H 1H1:
muμgreater than>55
a) The z-test statistic is?
(Round to two decimal places as needed.)
b)The critical z-score(s) is(are) ?
(Round to two decimal places as needed.)
C)Reject or fail to reject, why or why not?
D)p-value?
(Round to four decimal places as needed.)
Consider the hypotheses shown below. Given that x overbarequals110, sigmaequals27, nequals44, alphaequals0.10, complete parts a and...
Consider the hypotheses shown below. Given that x
overbarequals110, sigmaequals27, nequals44, alphaequals0.10,
complete parts a and b. Upper H 0: muequals118 Upper H 1: munot
equals118 a) What conclusion should be drawn? b) Determine the
p-value for this test.
a) The z-test statistic is?
b) p value is?
Consider the hypotheses shown below. Given that x overbarequals57, sigmaequals13, nequals35, alphaequals0.10, complete parts a and...
Consider the hypotheses shown below. Given that x
overbarequals57, sigmaequals13, nequals35, alphaequals0.10,
complete parts a and b. Upper H 0: muless than or equals54 Upper H
1: mugreater than54
Consider the hypotheses shown below. Given that x overbarequals=106, σ=27, n=48, α=0.05, complete parts a and...
Consider the hypotheses shown below. Given that x
overbarequals=106, σ=27, n=48, α=0.05,
complete parts a and b.
Upper H 0H0:
muμequals =113
Upper H 1H1:
muμnot equals ≠113
a. what is the z-test statistic?
b. what are the critical z-score(s)?
c. Because the test statistic _________________ ________ the
null hypothesis.
d. what is the p value?
Use the given data set to complete parts (a) through (c) below. (Use alphaαequals= 0.05.) x...
Use the given data set to complete parts (a) through (c) below.
(Use
alphaαequals= 0.05.)
x
10
8
13
9
11
14
6
4
12
7
5
y
7.45
6.77
12.75
7.11
7.82
8.83
6.07
5.39
8.15
6.43
5.74
Find the linear correlation coefficient, r, then determine
whether there is sufficient evidence to support the claim of a
linear correlation between the two variables.
The linear correlation coefficient is r=
Use the given data set to complete parts (a) through (c) below. (Use alphaαequals=0.05.) x 1010...
Use the given data set to complete parts (a) through (c)
below. (Use
alphaαequals=0.05.)
x
1010
88
1313
99
1111
1414
66
44
1212
77
55
y
9.149.14
8.148.14
8.738.73
8.788.78
9.269.26
8.118.11
6.136.13
3.093.09
9.149.14
7.267.26
4.734.73
Find the linear correlation coefficient, r, then determine
whether there is sufficient evidence to support the claim of a
linear correlation between the two variables.
Identify the feature of the data that would be missed if part
(b) was completed without constructing...
Use the given data set to complete parts (a) through (c) below. (Use alphaαequals=0.05.) x 10...
Use the given data set to complete parts (a) through (c)
below. (Use alphaαequals=0.05.)
x 10
88
13 99
11 14
66
44
12
77 55
y 9.13 8.13 8.74
8.77 9.26 8.09 6.12
3.09 9.13
7.26 4.74
a. construct a scatterplot.
b. find the linear correlation r, then determine whether it is
sufficient evidence to support the claim of a linear correlation
between the two variables.
Use the given data set to complete parts (a) through (c) below. (Use alphaαequals=0.05.) x 1010...
Use the given data set to complete parts (a) through (c)
below. (Use
alphaαequals=0.05.)
x
1010
88
1313
99
1111
1414
66
44
1212
77
55
y
7.467.46
6.776.77
12.7412.74
7.127.12
7.827.82
8.848.84
6.096.09
5.385.38
8.158.15
6.436.43
5.735.73
LOADING...
Click here to view a table of critical values for the
correlation coefficient.
a. Construct a scatterplot. Choose the correct graph below.
A.
04812160481216xy
A scatterplot has a horizontal x-scale from 0 to 16 in
increments of 2 and a vertical...
Use the given data set to complete parts (a) through (c) below. (Use alphaαequals=0.05.) x 10...
Use the given data set to complete parts (a) through (c)
below. (Use
alphaαequals=0.05.)
x
10
8
13
9
11
14
6
4
12
7
5
y
9.14
8.13
8.73
8.78
9.25
8.11
6.12
3.11
9.12
7.26
4.73
LOADING...
Click here to view a table of critical values for the
correlation coefficient.
a. Construct a scatterplot. Choose the correct graph below.
A.
04812160246810xy
A scatterplot has a horizontal x-scale from 0 to 16 in
increments of 2 and a vertical...
Use the given data set to complete parts (a) through (c) below. (Use alphaαequals=0.05.) x 10...
Use the given data set to complete parts (a) through (c)
below. (Use
alphaαequals=0.05.)
x
10
8
13
9
11
14
6
4
12
7
5
y
9.13
8.13
8.75
8.77
9.27
8.11
6.14
3.09
9.14
7.26
4.73
Find the linear correlation coefficient, r, then determine
whether there is sufficient evidence to support the claim of a
linear correlation between the two variables.
The linear correlation coefficient is
r=______
(Round to three decimal places as needed.)
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