Question

consider the following competing hypotheses:

*H*_{0}: *ρ _{xy}* = 0

The sample consists of 28 observations and the sample correlation coefficient is 0.47. [You may find it useful to reference the t table.]

What is the test statistic?

Answer #1

Consider the following competing hypotheses:
H0: ρxy ≥ 0
HA: ρxy < 0
The sample consists of 32 observations and the sample correlation
coefficient is –0.35. [You may find it useful to reference
the t table.]
a-1. Calculate the value of the test statistic.
(Round intermediate calculations to at least 4 decimal
places and final answer to 3 decimal places.)
a-2. Find the p-value.
A)0.025
p-value < 0.05
B)0.01 p-value < 0.025
C)p-value < 0.01
D)p-value 0.10
E)0.05 p-value < 0.10

Consider the following competing hypotheses: H0: ρxy = 0 HA: ρxy
≠ 0
The sample consists of 29 observations and the sample
correlation coefficient is 0.48. [You may find it useful to
reference the t table.]
a-1. Calculate the value of the test statistic. (Round
intermediate calculations to at least 4 decimal places and final
answer to 3 decimal places.)
a-2. Find the p-value. p-value 0.10 0.05 p-value < 0.10 0.02
p-value < 0.05 0.01 p-value < 0.02 p-value <...

Consider the following competing hypotheses: H0: ρxy = 0 HA: ρxy
≠ 0 The sample consists of 26 observations and the sample
correlation coefficient is 0.69. [You may find it useful to
reference the t table.]
a-1. Calculate the value of the test statistic. (Round
intermediate calculations to at least 4 decimal places and final
answer to 3 decimal places.)
a-2. Find the p-value. p-value 0.10 0.05 p-value < 0.10 0.02
p-value < 0.05 0.01 p-value < 0.02 p-value <...

Consider the following competing hypotheses and accompanying
sample data. (You may find it useful to reference the
appropriate table: z table or t
table)
H0: p1 −
p2 = 0.20
HA: p1 −
p2 ≠ 0.20
x1 = 144
x2 = 131
n1 = 248
n2 = 417

Consider the following competing hypotheses and accompanying
sample data drawn independently from normally distributed
populations. (You may find it useful to reference the
appropriate table: z table or t
table)
H0: μ1 −
μ2 ≥ 0
HA: μ1 −
μ2 < 0
x−1x−1 = 267
x−2x−2 = 295
s1 = 37
s2 = 31
n1 = 11
n2 = 11
Test Statistics:

Consider the following hypotheses: H0: μ = 32 HA: μ ≠ 32 The
population is normally distributed. A sample produces the following
observations: (You may find it useful to reference the appropriate
table: z table or t table) 31 32 33 37 37 31 37 Click here for the
Excel Data File a. Find the mean and the standard deviation. (Round
your answers to 2 decimal places.) b. Calculate the value of the
test statistic. (Round intermediate calculations to at...

A sample of 24 observations provides the following statistics:
[You may find it useful to reference the t table.]
sx = 19, sy = 16, and sxy = 118.75
a-1. Calculate the sample correlation coefficient rxy. (Round
your answer to 4 decimal places.)
a-2. Interpret the sample correlation coefficient rxy.
A. The correlation coefficient indicates a positive linear
relationship.
B. The correlation coefficient indicates a negative linear
relationship.
C. The correlation coefficient indicates no linear
relationship.
b. Specify the hypotheses...

Consider the following competing hypotheses and accompanying
sample data. Use Table 8.
H0:
?S = 0
HA:
?S ? 0
rS = 0.71
and n = 9
a-1.
Determine the critical value at the 1% significance level.
(Round your answer to 3 decimal places.)
Critical value
b.
What is the value of the test statistic? (Negative value
should be indicated by a minus sign. Round your answer to 2 decimal
places.)
Test statistic

Consider the following competing hypotheses: Use Table 2.
H0: μD ≥ 0;
HA: μD < 0
d-bar = −2.3, sD = 7.5, n =
23
The following results are obtained using matched samples from
two normally distributed populations:
a.
At the 10% significance level, find the critical value(s).
(Negative value should be indicated by a minus sign. Round
intermediate calculations to 4 decimal places and final answer to 2
decimal places.)
Critical value
b.
Calculate the value of the...

Consider the following hypotheses:
H0: μ = 6,200
HA: μ ≠ 6,200
The population is normally distributed with a population standard
deviation of 700. Compute the value of the test statistic and the
resulting p-value for each of the following sample
results. For each sample, determine if you can "reject/do not
reject" the null hypothesis at the 10% significance level.
(You may find it useful to reference the appropriate
table: z table or t
table) (Negative values should be
indicated...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 15 minutes ago

asked 23 minutes ago

asked 28 minutes ago

asked 31 minutes ago

asked 33 minutes ago

asked 55 minutes ago

asked 57 minutes ago

asked 57 minutes ago

asked 58 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago