There are several parts to this question. Take a Test - Pamela Baptiste Harris -

Question

There are several parts to this question.

Take a Test - Pamela Baptiste Harris - Internet Explorer P https://www.mathxl.com/Student/PlayerTest.aspx?testld 124126668&centerwin-yes; Pamela Baptiste Harris 3/15/16 11:41 AM Quiz: Module 5, Quiz Submit Quiz This Question: 8 pts 13 of 13 (5 complete) This Quiz: 24 pts possible := Question Help A 0.1 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender selection, the proportion of baby girls is different from 0.5. Assume that sample data consists of 45 girls in 81 births, so the sample statistic of results in a z score that is 1 standard deviation above 0. Complete parts (a) through (h) below Click here to view a. Identify the null hypothesis and the alternative hypothesis. Choose the correct answer below OA. Ho:p=0.5 O c. H0: p= 0.5 page 1 of the Normal table, Click here to view page 2o f the Normal table OB. Ho:p=0.5 H1:p 0.5 b. What is the value of ? a(Type an integer or a decimal.) c. What is the sampling distribution of the sample statistic? 2 O Student (t) distribution O Normal distribution d. Is the test two-tailed, left-tailed, or right-tailed? Click to select your answer(s) 2 10:42 AM 3/15/2016 Search the web and Windows

Explanation / Answer

a.

A . H0 : p = 0.5

H1: p not 0.5

b.

alpha = 0.1

c.

Normal Distribution

d.

Two-tailed

e.

Test statistics = 1

f.

p-value = 0.15866*2 = 0.3173

g.

Critical values are -1 and 1

h

Area of critical region = p-value = 0.3173

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