# Question: A random sample of 200 observations produced a sample proportion

A random sample of 200 observations produced a sample proportion equal to .60. Find the critical and observed values of z for each of the following tests of hypotheses using α = .01.

a. H0: p = .63 versus H1: p < .63

b. H0: p = .63 versus H1: p ≠ .63

a. H0: p = .63 versus H1: p < .63

b. H0: p = .63 versus H1: p ≠ .63

**View Solution:**## Answer to relevant Questions

Consider the null hypothesis H0: p = .65. Suppose a random sample of 1000 observations is taken to perform this test about the population proportion. Using α = .05, show the rejection and non-rejection regions and find the ...Make the following hypothesis tests about p. a. H0: p = .57, H1: p = .57, n = 800, p̂ = .50, α = .05 b. H0: p = .26, H1: p = .26, n = 400, p̂ = .23, α = .01 c. H0: p = .84, H1: µ ≠ .84, n = 250, p̂ = .85, α = .025 According to a Pew Research Center nationwide telephone survey conducted between March 15 and April 24, 2011, 55% of college graduates said that college education prepared them for a job (Time, May 30, 2011). Suppose this ...Multiple choice questions: 1. A test of hypothesis is always about a. A population parameter b. A sample statistic c. A test statistic 2. A Type I error is committed when a. A null hypothesis is not rejected when it is ...The weekly weight losses of all dieters on Diet I have a normal distribution with a mean of 1.3 pounds and a standard deviation of .4 pound. The weekly weight losses of all dieters on Diet II have a normal distribution with ...Post your question