Provided below are summary statistics for independent simple random samples from two populations. Use the pooled t-test and the pooled t-interval procedure conduct the required hypothesis test and obtain the specified confidence interval. X, = 20, s, = 4, n, = 21, x, = 24, s, = 5, n, = 15 a. Left-tailed test, a 0.05 b. 90% confidence interval .... a. What are the correct hypotheses for a left-tailed test? O A. Ho: H1 = H2 Ha: 41> H2 O B. Ho: H1 = P2 Ha: H1 H2 Ha: H1 = 42 Compute the test statistic. t%3= E(Round to three decimal places as needed.) Determine the P-value. P = (Round to four decimal places as needed.) Since the P-value is V than a, V Ho.
Provided below are summary statistics for independent simple random samples from two populations. Use the pooled t-test and the pooled t-interval procedure conduct the required hypothesis test and obtain the specified confidence interval. X, = 20, s, = 4, n, = 21, x, = 24, s, = 5, n, = 15 a. Left-tailed test, a 0.05 b. 90% confidence interval .... a. What are the correct hypotheses for a left-tailed test? O A. Ho: H1 = H2 Ha: 41> H2 O B. Ho: H1 = P2 Ha: H1 H2 Ha: H1 = 42 Compute the test statistic. t%3= E(Round to three decimal places as needed.) Determine the P-value. P = (Round to four decimal places as needed.) Since the P-value is V than a, V Ho.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Transcribed Image Text:Provided below are summary statistics for independent simple random samples from two populations. Use the pooled t-test and the pooled t-interval procedure to
conduct the required hypothesis test and obtain the specified confidence interval.
X1 = 20, s1 = 4, n, =21, x2 = 24, s2 = 5, n2 = 15
a. Left-tailed test, a = 0.05
b. 90% confidence interval
.....
a. What are the correct hypotheses for a left-tailed test?
A. Ho:H1=H2
Ha: H1> H2
O B. Ho: H1 = H2
Ha: H1<H2
C. Ho: H1 <H2
Ha: H1 = H2
D. Ho: H1 # H2
Ha: H1 = H2
O E. Ho: H1 = H2
Ha: H1 # H2
O F. Ho: H1 > H2
Ha: H1 = H2
Compute the test statistic.
t= (Round to three decimal places as needed.)
Determine the P-value.
P =
(Round to four decimal places as needed.)
Since the P-value is
than a,
Но-
b. The 90% confidence interval
from
(Round to three decimal places as needed.)
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