I Question 13 v E crz pts '0 3 8 99 (D Details You wish to test the following claim (Ha) at a signicance level of a: : 0.05. Hour; : 67.8 Hahn 3e 67.8 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n. : 59 with mean M : 66.5 and a standard deviation of SD : 6.2. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = '' What is the pvalue for this sample? (Report answer accurate to four decimal places.) p-value =' i The p-value is... 0 less than (or equal to) o: O greater than or This test statistic leads to a decision to... O reject the null O accept the null O fail to reject the null 0 Question 12 v a oxz pts '0 3 8 99 G) Details You wish to test the following claim (H...) at a signicance level of oz : 0.05. Hons : 55.4 Ha:p % 55.4 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n : 30 with mean M : 61.2 and a standard deviation of SD : 17.8. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = l' What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value =' l The pvalue is... 0 less than (or equal to) o: O greater than or This test statistic leads to a decision to... O reject the null O accept the null O fail to reject the null 0 Question 6 v B 0/2 pts '0 3 B 99 (D Details Assume that a sample is used to estimate a population mean ,u. Find the margin of error ME. that corresponds to a sample of size 6 with a mean of 53.5 and a standard deviation of 8.6 at a condence level of 90%. Report ME accurate to one decimal place because the sample statistics are presented with this accuracy. ME. = Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. . Question 5 0/2 pts 5 3 99 8 Details SAT scores are distributed with a mean of 1,500 and a standard deviation of 300. You are interested in estimating the average SAT score of first year students at your college. If you would like to limit the margin of error of your 95% confidence interval to 25 points, how many students should you sample? Make sure to give a whole number answer.0 Question 3 v I3 or2 pts '0 3 2 99 G) Details You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures: Find the 90% condence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to two decimal places (because the sample data are reported accurate to one decimal place). Answer should be obtained without any preliminary rounding. 0 Question 2 v |T_./ 0/2 pts '0 3 8 99 (D Details The effectiveness of a blood-pressure drug is being investigated. An experimenter nds that, on average, the reduction in systolic blood pressure is 44.6 for a sample of size 342 and standard deviation 19.3. Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 98% condence level). Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). | |W| | Answer should be obtained without any preliminary rounding. 0 Question 1 v IL/ 0/2 pts '0 3 z 99 (D Details Assume that a sample is used to estimate a population mean 1.5. Find the margin of error ME. that corresponds to a sample of size 10 with a mean of 3?.3 and a standard deviation of 20.2 at a condence level of 99%. Report ME accurate to one decimal place because the sample statistics are presented with this accuracy. ME. = Answer should be obtained without an}.r preliminary rounding. However, the critical value may be rounded to 3 decimal places