Final Conclusions. In Exercises 25–28, use a significance level of α = 0.05 and use the given information for the following:
a. State a conclusion about the null hypothesis. (Reject H0 or fail to reject H0.)
b. Without using technical terms or symbols, state a Final conclusion that addresses the original claim.
27. Original claim: The mean pulse rate (in beats per minute) of adult males is 72 bpm. The hypothesis test results in a P-value of 0.0095.
Learn your wayIncludes step-by-step video
Chapter 8 Solutions
Essentials of Statistics (6th Edition)
Additional Math Textbook Solutions
Statistics: The Art and Science of Learning from Data (4th Edition)
An Introduction to Mathematical Statistics and Its Applications (6th Edition)
Elementary Statistics: Picturing the World (6th Edition)
Essentials of Statistics, Books a la Carte Edition (5th Edition)
Basic Business Statistics, Student Value Edition (13th Edition)
Introductory Statistics (10th Edition)
- Final Conclusions. In Exercises 25–28, use a significance level of α = 0.05 and use the given information for the following: a. State a conclusion about the null hypothesis. (Reject H0 or fail to reject h0). b. Without using technical terms or symbols, state a final conclusion that addresses the original claim. Original claim: Fewer than 90% of adults have a cell phone. The hypothesis test results in a p-value of 0.0003.arrow_forwardWe want to determine if the true proportion of students who do aerobics is less than 45%. Which are the correct hypotheses? Ho: P = 0.45; Ha: P≠ 0.45 Ho: P = 0.45; Ha: P > 0.45 Ho: P ≥ 0.45; Ha:P < 0.45 Ho: μ ≥ 0.45; Ha: μ < 0.45arrow_forward- test the null hypothesis that the population mean, u is 14.arrow_forward
- From the table on the image: Construct an appropriate hypothesis test to determine whether or not there is an association between experiencing phenomena such as seeing a ghost and the age group you are in. Write the appropriate null/alternative hypothesis and carry out the test. Use a significance level of α = 0.01.arrow_forwardState the conclusion for the test. O A. Fail to reject the null hypothesis. There is sufficient evidence to support the claim that men have a higher mean body temperature than women. O B. Fail to reject the null hypothesis. There is not sufficient evidence to support the claim that men have a higher mean body temperature than women. OC. Reject the null hypothesis. There is not sufficient evidence to support the claim that men have a higher mean body temperature than women. O D. Reject the null hypothesis. There is sufficient evidence to support the claim that men have a higher mean body temperature than women. b. Construct a confidence interval suitable for testing the claim that men have a higher mean body temperature than women. (Round to three decimal places as needed.)arrow_forwardTourism is extremely important to the economy of Florida. Hotel occupancy is an often-reported measure of visitor volume and visitor activity (Orlando Sentinel, May 19, 2018). Hotel occupancy data for February in two consecutive years are as follows. Current Year (1) Previous Year (2) 1458 1800 Occupied Rooms (X) 1470 Total Rooms (n) 1750 Under the question of a test of hypothesis about the two proportions, what is the value of the standard error? (Round to four decimals.) Answer:arrow_forward
- Tourism is extremely important to the economy of Florida. Hotel occupancy is an often-reported measure of visitor volume and visitor activity (Orlando Sentinel, May 19, 2018). Hotel occupancy data for February in two consecutive years are as follows. Let P1= population proportion of rooms occupied for current year P2= population proportion of rooms occupied for previous year 1,476 1,800 1,343 1,700 a. Formulate the hypothesis test that can be used to determine whether there has been an increase in the proportion of rooms occupied over the one-year period. Current year Ho: P1-P2 - Select your answer - Ha P1 P2 - Select your answer - b. What is the estimated proportion of hotel rooms occupied each year (to 2 decimals)? Previous Year Occupied Rooms Total Rooms * c. Conduct a hypothesis test. What is the p-value (to 4 decimals)? Use Table 1 from Appendix B. p-value = Using a 0.05 level of significance, what is your conclusion? Current Year to Do you think area officials would be pleased…arrow_forwardUse the 5 steps solution on Hypothesis Testing. A. Null and alternative hyposthesis B. Significance level type of test (one-tailed or two-tailed type) C. Test statistics or statistical tool D. Observed P-value E. Decision (reject Ho or not)arrow_forwardMen Women H2 A study was done on body temperatures of men and women. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. 11 97.67°F 0.91°F 59 97.35°F 0.73°F a. Use a 0.05 significance level to test the claim that men have a higher mean body temperature than women. What are the null and alternative hypotheses? OB. Ho H =H2 O A. Ho 4, 2H2 H: 1arrow_forwardJust looking for part Carrow_forwardTest the claim about the population mean, µ, at the given level of significance using the given sample statistics. Claim: µ = 30; a = 0.07; o = 3.04. Sample statistics: x= 29.2, n= 73 Identify the null and alternative hypotheses. Choose the correct answer below. O B. Ho: H 30 Ο Ε. H : μ > 30 Ha: H= 30 Ha: H#30 Calculate the standardized test statistic. The standardized test statistic is (Round to two decimal places as needed.) Determine the critical value(s). Select the correct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed.) O A. The critical values are t O B. The critical value is Determine the outcome and conclusion of the test. Choose the correct answer below. O A. Reject Ho. At the 7% significance level, there is enough evidence to support the claim. O B. Reject Ho. At the 7% significance level, there is enough evidence to reject the claim. OcC. Fail to reject Ho. At the 7% significance level, there is not enough evidence to…arrow_forwardTest the claim about the population mean, µ, at the given level of significance using the given sample statistics. Claim: µ + 7000; a = 0.03; o = 410. Sample statistics: x = 6900, n= 35 Identify the null and alternative hypotheses. Choose the correct answer below. A. Ho: µ+7000 Ha: µ = 7000 B. Ho: µ = 7000 Ha: µ#7000 Ho: µ+7000 Ha: µs7000 Ho: µ+7000 Ha: μ2 7000 Ο Ε. H0: μ> 7000 Ha: µ#7000 ΟF H μ 7000 Ha: µ#7000 Calculate the standardized test statistic. The standardized test statistic is - 1.44 . (Round to two decimal places as needed.) Determine the critical value(s). Select the correct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed.) A. The critical values are ± B. The critical value isarrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
- Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGALGlencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill