Question
A random sample of30binomial trials resulted in12successes. Test the claim that the population proportion of successes does not equal 0.50. Use a level of significance
A random sample of30binomial trials resulted in12successes. Test the claim that the population proportion of successes does not equal 0.50. Use a level of significance of 0.05.(a) Can a normal distribution be used for thedistribution? Explain. Yes,npandnqare both less than 5.No,npandnqare both less than 5. No,nqis greater than 5, butnpis less than 5.No,npis greater than 5, butnqis less than 5.Yes,npandnqare both greater than 5. (b) State the hypotheses. H0:p= 0.5;H1:p0.5H0:p= 0.5;H1:p<0.5 H0:p<0.5;H1:p= 0.5H0:p= 0.5;H1:p>0.5 (c) Compute. (Enter a number.) p hat = Compute the corresponding standardized sample test statistic. (Enter a number. Round your answer to two decimal places.) (d) Find theP-value of the test statistic. (Enter a number. Round your answer to four decimal places.) (e) Do you reject or fail to rejectH0? Explain. At the= 0.05 level, we reject the null hypothesis and conclude the data are statistically significant.At the= 0.05 level, we reject the null hypothesis and conclude the data are not statistically significant. At the= 0.05 level, we fail to reject the null hypothesis and conclude the data are statistically significant.At the= 0.05 level, we fail to reject the null hypothesis and conclude the data are not statistically significant. (f) What do the results tell you? The samplevalue based on 30 trials is not sufficiently different from 0.50 to justify rejectingH0for= 0.05.The samplevalue based on 30 trials is sufficiently different from 0.50 to not rejectH0for= 0.05. The samplevalue based on 30 trials is sufficiently different from 0.50 to justify rejectingH0for= 0.05.The samplevalue based on 30 trials is not sufficiently different from 0.50 to not rejectH0for= 0.05.
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started