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(Exercise 11.1(Algorithmic)) Consider the following results for independent samples taken from two populations Sample 1 1 400 P1 0.45 Sample 2 300 p2 0.34 a. What id the point estimate of the difference between the two population proportions (to 2 decimals)i b Develop a 90% confidence interval for the difference between the two population proportions to 4 decimals to C. Develop a 95% confidence interval for the difference between the two population proportions (to 4 decimals). to
Consider the hypothesis test below. Ho: P1-P2SO Ha: P1 P20 The following results are for independent samples taken from the two populations. Sample 1 Sample 2 n200 Pi# .22 2300 乃= .16 a. What is the value of the test statistic (to 2 decimals)? b. What is the p-value (to 4 decimals)? c. With a .05, what is your hypothesis testing conclusion? - Select your answer
Consider the hypothesis test below. Ho: p 1 p2s0 Ha: P1 p 2>0 The following results are for independent samples taken from the two populations. Sample 1 n1 100 P1-0.21 Sample 2 2300 P20.12 a. What is the value of the test statistic (to 2 decimals)? b. What is the p-value (to 4 decimals)? c. With a.05, what is your hypothesis testing conclusion? Select
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Answer #1

Ans en thet ho estmae f the diftrenceecen the broe 400 300 1.645(00 001366:15)= o, lit l. 645(0.03694 o.11土 the too popola hon: 0.22 , 0.16 et Noll4pothe Srs (to) Test shek, z- O, 22-0. II b) aY1/hb laded tes6丿 P-valus eftY fnce 9e4s Valwe x (o.os se Sesect moll ypothesis. v, 100) or-300 o0(0.91)t 300l0. 122 4 0 O. o 「to/Qas)(0,9575) (0.01+0.0033) ら 6), Value) fあ 쟈밌23is o. 0129 snae

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