Question

The test statistic is: Select an
answer -1.56

The Critical Value is: Select an
answer -2.201

do I reject or fail to reject and is there enough
evidence?

Answer #1

Determine the critical value(s) of the test statistic for each
of the following small sample tests for the population mean where
the assumption of normality is satisfied. Round your answer to four
decimal places.
Left-tailed test,α=0.01,n=24
Right-tailed test ,α=0.1,n=8
Two-tailed test, α=0.05,n=12
A high school principle currently encourages students to enroll
in a specific SAT prep program that has a reputation of improving
score by 50 points on average. A new SAT prep program has been
released and claims to...

For a one-tail (lower) hypothesis test, if the z- or t-test
statistic exceeds the critical value, we do not reject the null
hypothesis.
Select one:
True
False

Conduct the hypothesis test and provide the test statistic and
the critical value, and state the conclusion.A person purchased a
slot machine and tested it by playing it 1,294 times. There are 10
different categories of outcomes, including no win, win jackpot,
win with three bells, and so on. When testing the claim that the
observed outcomes agree with the expected frequencies, the author
obtained a test statistic of chi squared χ2=16.414 Use a 0.10
significance level to test the...

Conduct the hypothesis test and provide the test statistic,
critical value and P-value, and state the conclusion.
A package of 100 candies are distributed with the following
color percentages: 15% red, 20% orange,16% yellow, 10% brown,
25% blue, and 14% green.
Use the given sample data to test the claim that the color
distribution is as claimed. Use a 0.025 significance level.
Candy counts:
Color
Number in Package
Red
15
Orange
23
Yellow
6
Brown
9
Blue
27
Green
20...

A sample mean, sample standard deviation, and sample size are
given. Use the one-mean t-test to perform the required hypothesis
test about the mean, μ, of the population from which the sample was
drawn. Use the critical-value approach.
, , n = 11, H0: μ = 18.7, Ha: μ ≠ 18.7, α =
0.05
Group of answer choices
Test statistic: t = 1.03. Critical values: t = ±2.201. Do not
reject H0. There is not sufficient evidence to conclude
that...

The test statistic of z = −2.21 is obtained when testing the
claim that p = 3/5.
a. Using a significance level of α = 0.10, find the
criticalvalue(s).
b. Should we reject Upper H0 or should we fail to reject Upper
H0?
a. The critical value(s) is/are z = ____________.
b. Choose the correct conclusion below:
A. Fail to reject H0. There is not sufficient evidence to
support the claim that p = 3/5
B. Reject H0. There is...

Assume the computed t-statistic was t0=1.987
Find the t-critical value for a one-tailed test at the 0.05
significance level with 19
degrees of freedom. Is there sufficient evidence to reject the
null hypothesis?
Find the t-critical value for a one-tailed test at the 0.05
significance level with a sample
size of 30. Is there sufficient evidence to reject the null
hypothesis?
Find the t-critical value for a two-tailed test at the 0.05
significance level with 15
degrees of freedom. Is...

Conduct the hypothesis test and provide the test statistic and
the critical value, and state the conclusion.
A person drilled a hole in a die and filled it with a lead
weight, then proceeded to roll it 200 times. Here are the observed
frequencies for the outcomes of 1, 2, 3, 4, 5, and 6, respectively:
28, 27, 40, 38, 26, 41. Use a 0.01 significance level to test the
claim that the outcomes are not equally likely. Does it...

Conduct the hypothesis test and provide the test statistic and
the critical value, and state the conclusion. A person randomly
selected 100 checks and recorded the cents portions of those
checks. The table below lists those cents portions categorized
according to the indicated values. Use a 0.10 significance level to
test the claim that the four categories are equally likely. The
person expected that many checks for whole dollar amounts would
result in a disproportionately high frequency for the first...

For each of the following sets of results, compute the
appropriate test statistic, test the indicated alternative
hypothesis, and compute the effects size(s) indicating their
magnitude:
set
hypothesis
1
2
D
n
α
a)
μ1 ≠ μ2
32.7
38
4.5
24
0.10
b)
μ1 > μ2
101.3
96
9.6
26
0.01
c)
μ1 < μ2
75.2
75.4
6.8
24
0.05
a)
Compute the appropriate test statistic(s) to make a decision about
H0.
critical value = ; test statistic =
Decision: ---Select--- Reject...

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