Test: W5: Assignment 3 Final Exam This Question: 15 pts 4 15 of 20 (16 complete)

Question

Test: W5: Assignment 3 Final Exam This Question: 15 pts 4 15 of 20 (16 complete) This Test: 300 pts possib A o.1 significance level is used for a hypothesis test the claim parents use a particular method of gender selection the proporton of baby gits is less than as Assume that sample data cosits d d that when girts in 169 births, so the sample statistic of results in a z score that is 1 standard deviation below 0. Complete parts (a) through (h) below Chckhete tovien page 1 the Normaltable. Chck here to view page 2 the Namal.table. a. Identity the null hypothesis and the ahemative hypothesis Choose the comect answer below O A. Ho p 0.5 O B. Ho p 0.5 H1 0.5 O C. Ho p 0.5 b, What is the value of a? a" Type an integer or a decimal) c. What is the sampling distribution of the sample statistic? O student distribution d. is the test two-tailed leh4aled or right-talled? e. What is the value of the test statistic The test statistic is (Type integer era decimal) an What is the P value? SAMSUNG

Explanation / Answer

a) option D is correct

b) 0.1

c)normal dsitribution

d)left tailed

e)std error=(p(1-p)/n)1/2 =0.0385

phat=78/169=0.4615

test stat z=(phat-p)/std error =(0.4615-0.5)/0.0385 =-1

f)p value =0.1587

g) criitcal value =-1.2816

h)area of critical region =0.1

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