Os#3Microsoft Word -...You are conducting a study to see if the proportion of voters who prefer the Democratic candidate issignificantly different from 62% at a level of significance of a = 0.05. According to your sample, 27 out of50 potential voters prefer the Democratic candidate.Ea. For this study, we should use [z-test for a population proportionb. The null and alternative hypotheses would be:Ho: p=✓0.62(please enter a decimal)H₁: p(Please enter a decimal)c. The test statistic z = -1.165 (please show your answer to 3 decimal places.)(Please show your answer to 4 decimal places.)d. The p-value = Ïe. The p-value is ? af. Based on this, we should Select an answer the null hypothesis.g. Thus, the final conclusion is that ...80F3O The data suggest the populaton proportion is significantly different from 62% at a = 0.05, sothere is sufficient evidence to conclude that the proportion of voters who prefer theDemocratic candidate is different from 62%O The data suggest the population proportion is not significantly different from 62% at a = 0.05,so there is sufficient evidence to conclude that the proportion of voters who prefer theDemocratic candidate is equal to 62%.O The data suggest the population proportion is not significantly different from 62% at a = 0.05,so there is not sufficient evidence to conclude that the proportion of voters who prefer theDemocratic candidate is different from 62%.h. Interpret the p-value in the context of the study.O There is a 24.38% chance that the percent of all voters who prefer the Democratic candidatediffers from 62%.O There is a 24.38% chance of a Type I error.O If the sample proportion of voters who prefer the Democratic candidate is 53% and if another50 voters are surveyed then there would be a 24.38% chance that we would conclude eitherfewer than 62% of all voters prefer the Democratic candidate or more than 62% of all votersprefer the Democratic candidate.O If the population proportion of voters who prefer the Democratic candidate is 62% and ifanother 50 voters are surveyed then there would be a 24.38% chance that either fewer than53% of the 50 voters surveyed prefer the Democratic candidate or more than 71% of the 50voters surveyed prefer the Democratic candidate.i. Interpret the level of significance in the context of the study.✓0.62O If the proportion of voters who prefer the Democratic candidate is different from 62% and ifanother 50 voters are surveyed then there would be a 5% chance that we would end up falsely$4F4R%5F5T6MacBook AirY&78◄◄F7C00 *8DIIF8(9DDF9O)O

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Problem 1P

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The recidivism rate for convicted sex offenders is 11%. A warden suspects that this percent is different if the sex offender is also a drug addict. Of the 337 convicted sex offenders who were also drug addicts, 30 of them became repeat offenders. What can be concluded at the a = 0.10 level of significance? For this study, we should use Select an answer The null and alternative hypotheses would be: Ho: ? ✓ Select an answer H₁: ? ✓ Select an answer (please enter a decimal) (Please enter a decimal) The test statistic ? ✓ = The p-value = The p-value is? ♥ α Based on this, we should [Select an answer the null hypothesis. Thus, the final conclusion is that ... (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) O The data suggest the population proportion is not significantly different from 11% at a = 0.10, so there is statistically insignificant evidence to conclude that the population proportion of convicted sex offender drug addicts who become…
If you have a hypothesis test with alpha = 0.1, which of the following P-Values does NOT imply statistical significance? %3D 0.084 0.005 0.117 0.056 A researcher wants to find out if there is a significant difference between men and women in the average number of tattoos that a person has. After doing the statistical analysis, the researcher finds that the p- value is 0.003. If the chosen significance level is 0.05 (5%), which of the following statements is the best interpretation of this p-value?? | The results are statistically significant. | The results are not statistically significant. | The magnitude of a p-value. has no impact on statistical significance.
You wish to test the following daim (Ha) at a significance level of a = 0.001. H.:P1 2 P2 Ha:P1 < P2 You obtain a sample from the first population with 244 successes and 117 failures. You obtain a sample from the second population with 523 successes and 202 failures. test statistic = [three decimal accuracy] p-value = [four decimal accuracy) The p-value is... O less than (or equal to) a O greater than a This test statistic leads to a decision to... O reject the null hypothesis O fail to reject the null hypothesis As such, the final condusion is that... O There is sufficient evidence to support that the first population proportion is less than the second population proportion. There is not sufficient evidence to support that the first population proportion is less than the second population proportion.
a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses would be: Ho: uv (Please enter a decimal) c. The test statistic z v (please show your answer to 3 decimal places.) %3D d. The p-value = (Please show your answer to 4 decimal places.) %3D e. The p-value is> va f. Based on this, we should fail to reject vthe null hypothesis. g. Thus, the final conclusion is that ...
In a 2005 study 2205 adolescents aged 12 - 19 years old were give a treadmill test to check their cardiovascular health. 750 of the subjects were determined to have poor cardiovascular fitness. The researchers want to claim that more than 30% of adolescents have poor cardiovascular health (with a 5% level of significance). The research hypothesis is Ha:p>0.30. Find the test statistic, p-value, and state your conclusion.
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econometrics
You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is significantly different from 62% at a level of significance of a = 0.05. According to your sample, 27 out of 50 potential voters prefer the Democratic candidate. a. For this study, we should use z-test for a population proportion b. The null and alternative hypotheses would be: Ho: pv = 0.62 O O H₁: pv # OF c. The test statistic z O O 0.62 ✓(please enter a decimal) f. Based on this, we should reject g. Thus, the final conclusion is that (Please enter a decimal) = -1.165 (please show your answer to 3 decimal places.) d. The p-value = 0.1248 x (Please show your answer to 4 decimal places.) e. The p-value is > ✓ a 1x the null hypothesis. O The data suggest the populaton proportion is significantly different from 62% at a = 0.05, so there is sufficient evidence to conclude that the proportion of voters who prefer the Democratic candidate is different from 62% the population proportion is…
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