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Find the sample proportions and test statistic for equal
proportions. (a-1) Dissatisfied workers in two companies: x1 = 46,
n1 = 100, x2 = 36, n2 = 100, α = .05, two-tailed test. (Round your
answers to 4 decimal places. Use Excel to calculate the p-value.)
p1 p2 zcalc p-value zα/2 +/- (a-2) Choose the appropriate
hypotheses. a. H0:π1 – π2 = 0 vs. H1:π1 – π2 ≠ 0. Reject H0 if
zcalc < –1.96 or zcalc > 1.96 b....
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Find the sample proportions and test statistic for equal proportions. 100, X, = 36. n. 100. 05. two-tailed test. (Round your answers to 4 (a-1) Dissatisfied workers in two companies: X, 46, n, decimal places. Use Excel to calculate the p-value.) Heale p-value a/2 (a-2) Choose the appropriate hypotheses a. Ho:77 - - Ovs. Hy: -1 0. Reject Ho if Zeale < -1.96 or cale > 1.96 b. Hein - 1 Ovs. Hy:n - 1 0. Reject Ho if Zeale...
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Question 4 (of 5) 10.00 points Find the sample proportions and test statistic for equal proportions (a-1) Dissatisfied workers in two companies 저 Ⅱ 38, n1 100, x2 :28, n2 : 100, a = 05, two-tailed test Round your answers to 4 decimal places. Use Excel to calculate the p-value.) pt P2 p value 702 (a-2) Choose the appropriate hypotheses a 3) Based on the dala soject Ho True False 0-14-4xs AStat 1 Exam 1 Re.docx 4 Stat il Exam...
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Conduct the following test at the α = 0.05 level of significance
by determining (a) the null and alternative hypotheses, (b) the
test statistic, and (c) the P-value. Assume that the samples
were obtained independently using simple random sampling. Test
whether p1≠p2. Sample data are x1=30, n1=254, x2=36, and
n2=302.
(a) Determine the null and alternative hypotheses.
Choose the correct answer below.
A.
H0: p1=0 versus H1: p1=0
B.
H0: p1=p2 versus H1: p1<p2
C.
H0: p1=p2 versus H1: p1>p2...
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In a test for the difference between two proportions, the sample
sizes were n1=68 and n2=76 , and the numbers of successes in each
sample were x1=41 and x2=25 . A test is made of the hypothesis
Ho:p1=p2 versus H1:P1>p2 are the assumptions satisfied in order
to do this test?Explain. B) Find the test statistics value C) Can
you reject the null hypothesis at the a=0.01 significance level?
Use Ti-84 for calculations please.
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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 HA: p1 − p2 < 0 x1 =
250 x2 = 275 n1 = 400 n2 = 400 a. Calculate the value of the test
statistic. (Negative value should be indicated by a minus sign.
Round intermediate calculations to at least 4 decimal places and
final answer to 2 decimal...
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Consider the following competing hypotheses and accompanying
sample data. H0: p1 − p2 ≥ 0 HA: p1 − p2 < 0 x1 = 248 x2 = 266
n1 = 444 n2 = 444
a. At the 1% significance level, find the critical value(s).
b. Calculate the value of the test statistic.
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The Scottsdale fire department aims to respond to fire calls in
5 minutes or less, on average. Response times are normally
distributed with a standard deviation of 1 minute 6 seconds. Would
a sample of 18 fire calls with a mean response time of 5 minutes 11
seconds provide sufficient evidence to show that the goal is not
being met at α = .01?
(a) Choose the appropriate hypotheses.
a. H0: µ ≤ 5 min vs
H1: µ...
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Independent random samples of size n1=38 and n2=86 observations,
were selected from two populations. The samples from populations 1
and 2 produced x1=18 and x2=13 successes, respectively. Define p1
and p2 to be the proportion of successes in populations 1 and 2,
respectively. We would like to test the following hypotheses:
H0:p1=p2 versus H1:p1≠p2
(a)To test H0 versus H1, which inference procedure should you
use?
A. Two-sample z procedure
B. One-sample z procedure
C. One-sample t procedure
D. Two-sample t...
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Suppose you want to test the claim that µ1 < µ2. Two samples
are randomly selected from each population. The sample statistics
are given below. At a level of significance of α = 0.05, when
should you reject H0?
n1 = 35
n2 = 42
x̅1 = 29.05 x̅2 =
31.6
s1 =
2.9
s2 = 2.8
Suppose you want to test the claim that u1<p2. Two samples are randomly selected from each population. The sample statistics are given...