1. Determine the critical value of Z for a left tailed test
regarding a population mean at the alpha ?= .05 level of
significance.
2. Determine the critical value of t for a? two-tailed test of a
population mean at the alpha ?= .05 level of significance based on
a sample size of n? = 14? (13 d.f.).
3. Determine if the following statement is true or false.
When testing a hypothesis using the? P-value Approach, if the?
P-value is?...
Determine the critical values for these tests of a population
standard deviation. (a) A right-tailed test with 17 degrees of
freedom at the α equals = 0.1 level of significance (b) A
left-tailed test for a sample of size n equals = 28 at the alpha α
= 0.01 level of significance (c) A two-tailed test for a sample
of size n = 22 at the alpha α = 0.1 level of significance
Determine the critical values for these tests of a population
standard deviation.
1.A right-tailed test with 19 degrees of freedom at the a=0.1
level of significance
2. A left-tailed test for a sample of size n= 23 at the a=
0.01 level of significance
2. A two-tailed test for a sample of size n= 30 at the a=0.01
level of significance
Complete parts ?(a) through ?(c) below. ?(a) Determine the
critical? value(s) for a? right-tailed test of a population mean at
the ? = 0.10 level of significance with 20 degrees of freedom. ?(b)
Determine the critical? value(s) for a? left-tailed test of a
population mean at the ? = 0.05 level of significance based on a
sample size of n = 15. ?(c) Determine the critical? value(s) for a?
two-tailed test of a population mean at the ? = 0.10...
Determine the critical value.
Using the z-tables (or t-tables), determine the critical value
for the left-tailed z-test with α=0.01
Question options:
a)-2.326
b)2.326
c)2.576
d)-2.576
Identify the critical z values and the rejection region of the
following:
a) Right-tailed test with a = 0.05
b) Left-tailed test with a = 0.025
c) Two-tailed test with a = 0.01
d) a = 0.10 with HA : p < 0.26
The null and alternative hypotheses are given. Determine whether
the hypothesis test is left-tailed, right-tailed, or two-tailed and
indicate the parameter(s) being tested.
a.) ?0: ?1 = ?2 ?? ?1: ?1 > ?2
b.) ?0: ? = 8.6 ?? ?1: ? > 8.6