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- You are conducting a study to see if the accuracy rate for fingerprint identification is significantly more than 0.88. You use a significance level of α=0.001. H0:p=0.88 H1:p>0.88You obtain a sample of size n=208 in which there are 192 successes.What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... _______ less than (or equal to) α (or) _______ greater than αNeed help with aIs the proportion of wildfires caused by humans in the south different from the proportion of wildfires caused by humans in the west? 394 of the 533 randomly selected wildfires looked at in the south were caused by humans while 388 of the 554 randomly selected wildfires looked at the west were caused by humans. What can be concluded at the = 0.01 level of significance? For this study, we should use Select an answer z-test for the difference between two population proportions t-test for the difference between two dependent population means z-test for a population proportion t-test for the difference between two independent population means t-test for a population mean The null and alternative hypotheses would be: Select an answer p1 μ1 Select an answer > ≠ < = Select an answer μ2 p2 (please enter a decimal) Select an answer p1 μ1 Select an answer > = < ≠ Select an answer p2 μ2 (Please enter a decimal) The test statistic ? z t = (please show your…
- Test the research hypothesis that there is a difference in weights between the two groups at the 0.05 significance level? Assume the equality of variance, adequate sample size, and normal distribution for both the groups to test the hypothesis. X1 = 200 X2 = 198 n1 = 17 n2 = 17 s1 = 2.45 s2 = 2.35 Please show all the necessary steps of hypothesis testing to answer this question.A school district decided to measure the BMI of all 3rd graders and identify the highest 1% and lowest 1% of those students. If the distribution is converted to a z distribution, what would be the upper critical z value and lower critical z value that mark the two significant areas at the tails?A random sample of 100 private companies locating in Ankara was asked to rate on a scale from 1 (not important) to 5 (extremely important) for having the practical knowledge of statistics as a good job candidate. The sample mean rating was 4.7. a)Test at the 5% significance level the null hypothesis that the population mean rating is less than or equal to 4.5 against the alternative that it is greater than 4.5. Population variance is known as 0.6. b)Compute p-value and explain what the calculated p-value means.
- II-Term Exam Il-Make-up > الوقت المتبقي 40: The aim of a study is to test the ratio of variances in the weight of two groups of rats being under a certain drugs A (group 1) and B (group 2). A random sample of 17 rats was selected from group 1and 11 rats from group 2, Then their weight were recorded. The results are shown in the following table sd Median Mean n 1.05 3.5 17 group 1 2.0 2.20 11 group 2 3.0 1.15 F19,16,0.025 =0.386 F15,12,0.05=0.404 F16.10,0.025 = 0.335 F19,16,0.05=0.451 F15,12,0.1=0.496 | F16,10,0.05 = 0.401 F16,19,0.025 0.371 F12,15,0.05 =0.382 F10,16,0.025 =0.286| F16,19,0.05=0.437 F12,15,0.1=0.475 F10,16,0.05=0.354 Construct a 95% confidence interval for the ratio of the variances. [ Write only the final result in the box below ]You are conducting a study to see if the accuracy rate for fingerprint identification is significantly different from 0.23. You use a significance level of α=0.01 H0:p=0.23 H1:p≠0.23You obtain a sample of size n=228n=228 in which there are 70 successes.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... The sample data support the claim that the accuracy rate for fingerprint identification is different from 0.23. There is not sufficient sample evidence to support the claim that the accuracy rate for fingerprint identification is different from 0.23.To test a null hypothesis the 5 % level of significance is chosen, if the test is a left tailed test then the size of the critical region on the right tail will be Select one: O a. 0.025 ОБ. 0.005 O c. NONE O d. 0.0
- You are conducting a study to see if the accuracy rate for fingerprint identification is significantly less than 0.72. You use a significance level of α=0.02 H0:p=0.72 H1:p<0.72You obtain a sample of size n=291n=291 in which there are 192 successes.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the accuracy rate for fingerprint identification is less than 0.72. There is not sufficient evidence to warrant rejection of the claim that the accuracy rate for fingerprint identification is less than 0.72. The sample data support the claim that the…3 - A water manufacturer claims that its product is 330 ML. The amount of water has a normal distribution. Quality manager takes 25 products every hour and calculate the amount of the water. The mean amount of water at 10:00 yields the average amount of 315 ML and variance of 9 ML. Test the claim that amount of the water in the bottles is at least 330 ML. Use significance level as 0.05. What is the hypothesis? What is the test statistics? If both of the answers are correct you got the points, otherwise you lose all points. (use two decimal) a ) 25.00 b) Но : и — 330 Н) : д + 330 c) Но : и 330 d) -8.33 e) O Ho : µ 330 f) 8.33 g) Η, : μ>330 Η : μ 330 O O O 0 0A researcher wants to measure average cardiovascular health of university students and compare those scores to the average scores in the general population. Assuming that population variance is known, what statistical test is most appropriate for this study? independent-samples t-test single-sample t-test z-test for sample mean related-samples t-test