Question
In: Statistics and Probability
(1 point) Samples were collected from two ponds in the Bahamas to compare salinity values (in...
(1 point) Samples were collected from two ponds in the Bahamas to compare salinity values (in parts per thousand). Several samples were drawn at each site.
Pond 1: 37.02, 36.72, 37.36, 37.71, 37.01, 37.45, 37.54
Pond 2: 39.21, 38.51, 38.66, 38.24, 40.08
Use a 0.05 significance level to test the claim that the two ponds
have the same mean salinity value.
(a) The test statistic is
Solutions
orchestra answered 2 years agoRelated Solutions
(1 point) Samples were collected from two ponds in the Bahamas to compare salinity values (in...
(1 point) Samples were collected from two ponds in the Bahamas
to compare salinity values (in parts per thousand). Several samples
were drawn at each site.
Pond 1: 37.36, 37.32, 37.45, 36.72, 37.03, 37.71, 37.01
Pond 2: 39.05, 38.66, 38.51, 38.89, 38.53
Use a 0.050.05 significance level to test the claim that the two
ponds have the same mean salinity value.
(a) The test statistic is
(1 point) Samples were collected from two ponds in the Bahamas to compare salinity values (in...
(1 point) Samples were collected from two ponds in the Bahamas
to compare salinity values (in parts per thousand). Several samples
were drawn at each site.
Pond 1: 37.02, 36.72, 37.03, 38.85, 36.75, 37.54, 37.32
Pond 2: 38.71, 38.53, 39.21, 39.05, 38.89
Use a 0.050.05 significance level to test the claim that the two
ponds have the same mean salinity value.
(a) The test statistic is .
(b) The conclusion is
A. There is not sufficient evidence to indicate
that the...
Samples were collected from two ponds in the Bahamas to compare salinity values (in parts per...
Samples were collected from two ponds in the Bahamas to compare
salinity values (in parts per thousand). Several samples were drawn
at each site. Pond 1: 36.75, 37.45, 37.54, 37.71, 37.32, 37.01,
38.85 Pond 2: 38.53, 40.08, 39.04, 38.51, 38.66 Use a 0.05 0.05
significance level to test the claim that the two ponds have the
same mean salinity value.
(a) The test statistic is .
(b) The conclusion is A. There is not sufficient evidence to
indicate that the...
1 point) Independent random samples, each containing 60 observations, were selected from two populations. The samples...
1 point) Independent random samples, each containing 60
observations, were selected from two populations. The samples from
populations 1 and 2 produced 33 and 22 successes, respectively.
Test H0:(p1−p2)=0 against Ha:(p1−p2)≠0. Use α=0.08.
(a) The test statistic is____
(b) The P-value is ____
(c) The final conclusion is A. We can reject the null hypothesis
that (p1−p2)=0 and accept that (p1−p2)≠0. B. There is not
sufficient evidence to reject the null hypothesis that
(p1−p2)=0.
Two soil samples fully saturated were collected from the field for testing in the lab, both...
Two soil
samples fully saturated were collected from the field
for testing in the lab, both having a natural void ratio of 0.6.
The composition of the soil particles is as follows:
Sample
1: Composed of ONLY
quartz [3]
Sample
2: Composed of 65% quartz, 23% mica &12% iron
oxide.
[4] The
average value of specific gravity of soil particles is 2.65 for
quartz, 3.0 for mica and
3.8 for iron oxide.
Calculate the total unit weight of soil...
The data for 30 samples of 5 measurments each were collected from a process at Hawkeye...
The data for 30 samples of 5 measurments each were collected
from a process at Hawkeye Plastics. They've asked you to create an
x_bar chart and an s-chart for the process and to interpret the
results for them.
a) What vallues will be used for the centerline, upper control
limit, and lower control limit of each chart?
b) Creat the control charts.
c) Does the process appear to be in statistical control? Why or
why not?
d) The specification for...
17-14: The following sample data have been collected from independent samples from independent samples from two...
17-14: The following sample data have been collected from
independent samples from independent samples from two populations.
The claim is that the first population median will be larger than
the median of the second population.
Sample
1
Sample 2
4.4
2.6
3.7 4.2
2.7
2.4
3.5 5.2
1.0
2.0
4.0 4.4
3.5
2.8
4.9 4.3
2.8
3.1
State the appropriate null and alternative hypotheses.
Using the Mann-Whitney U-test, based on the sample
data, what...
Which values reflect the expected glucose concentrations (in mM) in micropuncture samples collected from regions inside...
Which values reflect the expected glucose concentrations (in mM)
in micropuncture samples collected from regions inside a nephron in
the following order: Bowman’s capsule, beginning of proximal
convoluted tubule, intermediate segment, middle of distal
convoluted tubule, and beginning of collecting duct?
a.) 0; 1; 2; 3; 2
b.) 2; 2; 0; 0; 0
c.) 2; 2; 2; 0; 0
d.) 0; 0; 0; 0; 0
(1 point) (a) Find the size of each of two samples (assume that they are of...
(1 point) (a) Find the size of each of two samples (assume that
they are of equal size) needed to estimate the difference between
the proportions of boys and girls under 10 years old who are afraid
of spiders. Assume the "worst case" scenario for the value of both
sample proportions. We want a 99% confidence level and for the
error to be smaller than 0.08.
Answer:
(b) Again find the sample size required, as in part (a), but
with...
(1 point) (a) Find the size of each of two samples (assume that they are of...
(1 point) (a) Find the size of each of two samples (assume that
they are of equal size) needed to estimate the difference between
the proportions of boys and girls under 10 years old who are afraid
of spiders. Use the conservative estimate for the value of both
sample proportions. We want a 9696% confidence level and for the
error to be smaller than 0.05.0.05.
Answer:
(b) Again find the sample size required, as in part (a), but
with the...
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