Question

6. A. Find the critical values: (5 pts) A.1) α = .025; Ha: P ≠ 0.6 A.2) α = .02; Ha: P < 0.8 A.3) α = .10: Ha: P > .5 B. Find the P – values (5 pts) B.1) With Ha: p < 0.777, the test statistic is z = -2.45 B.2) With Ha: p > 0.25, the test statistic is z = 2.40 B.3) With Ha: p ≠ 0.707, the test statistic is z = 2.15

Answer #1

B. Find the P – values
(B.1) With Ha: p < 0.777, the test statistic is z = -2.45
B.2) With Ha: p > 0.25, the test statistic is z = 2.40
B.3) With Ha: p ≠ 0.707, the test statistic is z = 2.15

A test of H0: p = 0.6 versus Ha: p >
0.6 has the test statistic z = 2.27.
Part A: What conclusion can you draw at the 5%
significance level? At the 1% significance level? (6 points)
Part B: If the alternative hypothesis is
Ha: p ≠ 0.6, what conclusion can you draw at the 5%
significance level? At the 1% significance level? (4 points) (10
points)

1. Find the P-value for testing Ho: p= 0.3 vs HA: p< 0.3 if
the test statistic is z= -1.01
2. Find the P-value for testing Ho: p= 0.5 vs HA: p> 0.5 if
the test statistic is z= 3.11
3. Find the P-value for testing Ho: p= 0.72 vs HA: p =/ (does
not equal) 0.72 of the test statistic is z= -2.84

10. Assume that the significance level is α=0.05. Use the given
statement and find the P-value and critical value(s).The test
statistic of z= −1.85 is obtained when testing the claim that
p=1/5.
P-values= ___
(Round to four decimal places as needed.)
The critical value(s) is/are z=_____
(Round to two decimal places as needed. Use a comma to separate
answers as needed.)
11. Assume that the significance level is α=0.01. Use the given
information to find the P-value and the critical...

n=90, Y =18.8, S =15.3, α =0.05⇒tn−1,α/2 = t89,.025 =1.987
H0 : µ =21.7 versus HA : µ6=21.7
Rejection Region:|t|> t89,.025 =1.987
t =Y−µ0 S/sqrt(n) =18.8−21.7 15.3/p90 = −2.9 1.6128
=−1.798⇒|t|=1.798 < t89,.025 =1.987
Cannot reject H0 at 5% level. There is not sufﬁcient evidence to
support the average number of Type 2 ﬁbers is different from
21.7.
what is the p-value?

Find the critical value for the following one-tailed data.
a. F(5, 6, .025) d. F(2, 6, .05)
b. F(4, 2, .05) e. F(4, 3, .01)
c. F(4, 2, .01) f. F(5, 3, .05)

1. Find the critical z-value(s) for a right-tailed test with α =
0.02Assume a normal population.
2. Find the critical t-value(s) for a two-tailed test with n =
12, α = 0.05. Assume a normal distribution.
3. Express the claim in symbolic form: At least half the
students at this school carpool to campus.
4. Express the claim in symbolic form:The average number of sick
days taken annually by individual faculty members at this school is
4.
5. Express the claim...

The test statistic of
z= −2.45
is obtained when testing the claim that
p= 2/3.
1.) Using a significance level of
α= 0.05,
find the critical value(s).
Can someone explain how to find the answer step by step without
a calculator, I'm Completely lost with the fraction.

(a) Write the claim mathematically and identify H0 and Ha.
(b) Find the critical value(s) and identify the rejection
region(s).
(c) Find the standardized test statistic.
(d) Decide whether to reject or fail to reject the null
hypothesis.
In a sample of 1797 home buyers, you find that 785 home buyers
found their real estate agent through a friend. At α=0.06, can you
reject the claim that 43% of home buyers find their real estate
agent through a friend?
(a)...

Find the critical values using the information in the
table.
set
Hypothesis
α
df
a)
μ − μ0 > 0
0.05
5
b)
μ − μ0 < 0
0.025
6
c)
μ − μ0 > 0
0.005
9
d)
μ − μ0 < 0
0.25
16
a) critical value:
b) critical value:
c) critical value:
d) critical value:

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