State whether each of the following related samples
t-tests is significant for a two-tailed test at...
State whether each of the following related samples
t-tests is significant for a two-tailed test at a 0.05
level of significance.
(a)
t(30) = 3.330
Yes, the test is significant.
No, the test is not
significant.
(b)
t(15) = 2.541
Yes, the test is significant.
No, the test is not
significant.
(c)
t(14) = 2.032
Yes, the test is significant.
No, the test is not
significant.
(d)
t(60) = 1.951
Yes, the test is significant.
No, the test is not...
State whether each of the following related samples
t-tests is significant for a two-tailed test at...
State whether each of the following related samples
t-tests is significant for a two-tailed test at a 0.05
level of significance.
(a)
t(30) = 3.360
Yes, the test is significant.No, the test is not
significant.
(b)
t(13) = 2.355
Yes, the test is significant.No, the test is not
significant.
(c)
t(14) = 2.045
Yes, the test is significant.No, the test is not
significant.
(d)
t(60) = 1.962
Yes, the test is significant.No, the test is not
significant.
HW 6: z-test, t-test for independent samples, t-test for related
samples, 1-way ANOVA
Researchers wanted to...
HW 6: z-test, t-test for independent samples, t-test for related
samples, 1-way ANOVA
Researchers wanted to explore different treatment methods to
effect memory skills in high school freshmen. Subjects were given a
memory test (under multiple conditions) these were the results:
Group 1
10, 8, 9, 11,
8, 9, 7, 6,
9, 8
Group 2
12, 10,
11, 9, 13, 8, 9, 12, 11, 11
Group 3
10, 9, 10, 9, 11,
8, 7, 9, 10, 11...
Choose true or false.
True False Two straight wires carry electric currents in the
positive directions...
Choose true or false.
True False Two straight wires carry electric currents in the
positive directions along the x- and y-axes. In
the first quadrant, the magnetic field is directed out of the plane
of the paper in some places, into the plane of the paper in other
places, and in some places it is zero.
True False A parallel-plate capacitor has a
capacitance of 10 mF and is charged with a 20 V
power supply. The power supply is then...
True or False: For all hypothesis tests, a small p-value means
we will reject the null....
True or False: For all hypothesis tests, a small p-value means
we will reject the null.
True or False: If you are testing the means of two groups, then
you would use ANOVA.
True or False: A two-sample confidence interval must capture
zero to show the groups are different.
True or False: The test statistic for ANOVA is the
f-statistic.
True or False: For Chi-Square tests, if the observed counts and
expected counts are extremely different, then we would have...