Question

Consider the following competing hypotheses and accompanying sample data. (You may find it useful to reference the appropriate table: z table or ttable) $H_0: p_1 - p_2 = 0.20$ $H_A: p_1 - p_2 \neq 0.20$ $x_1 = 173$ $n_1 = 270$ $x_2 = 130$ $n_2 = 379$ a. Calculate the value of the test statistic. (Round final answer to 2 decimal places.) Answer is complete but not entirely correct. Test statistic 6.68

          Consider the following competing hypotheses and accompanying sample data. (You may find it useful to reference the appropriate table: z table or ttable)
$H_0: p_1 - p_2 = 0.20$
$H_A: p_1 - p_2 \neq 0.20$
$x_1 = 173$
$n_1 = 270$
$x_2 = 130$
$n_2 = 379$
a. Calculate the value of the test statistic. (Round final answer to 2 decimal places.)
Answer is complete but not entirely correct.
Test statistic  6.68

Consider the following competing hypotheses and accompanying sample data. (You may find it useful to reference the appropriate table: z table or ttable)
H0: p1 - p2 = 0.20
HA: p1 - p2 ≠ 0.20
x1 = 173
n1 = 270
x2 = 130
n2 = 379
a. Calculate the value of the test statistic. (Round final answer to 2 decimal places.)
Answer is complete but not entirely correct.
Test statistic 6.68

Added by Ronald B.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Madhur L

08/04/2023

Step 1

p̂1 = x1 / n1 = 173 / 270 ≈ 0.64 p̂2 = x2 / n2 = 130 / 379 ≈ 0.34 Show more…

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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 = 0.20 HA: p1 - p2 ≠ 0.20 x1 = 173, x2 = 130 n1 = 270, n2 = 379 a. Calculate the value of the test statistic. (Round final answer to 2 decimal places.) Answer is complete but not entirely correct. Test statistic 6.68