a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? v?v H1: ?? c. The test statistic ? v = (please show your answer to 3 decimal places.) d. The p-value= | (Please show your answer to 4 decimal places.) e. The p-value is ? a f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest that the sample mean is not significantly less than 6 at a = 0.05, so there is statistically insignificant evidence to conclude that the sample mean number of accidents per year at intersections with cameras installed is less than 5.6 accidents. OThe data suggest that the population mean is not significantly less than 6 at a = 0.05, so there is statistically insignificant evidence to conclude that the population mean number of accidents per year at intersections with cameras installed is less than 6 accidents. OThe data suggest that the populaton mean is significantly less than 6 at a = 0.05, so there is statistically significant evidence to conclude that the population mean number of accidents per year at intersections with cameras installed is less than 6 accidents.

a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? v?v H1: ?? c. The test statistic ? v = (please show your answer to 3 decimal places.) d. The p-value= | (Please show your answer to 4 decimal places.) e. The p-value is ? a f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest that the sample mean is not significantly less than 6 at a = 0.05, so there is statistically insignificant evidence to conclude that the sample mean number of accidents per year at intersections with cameras installed is less than 5.6 accidents. OThe data suggest that the population mean is not significantly less than 6 at a = 0.05, so there is statistically insignificant evidence to conclude that the population mean number of accidents per year at intersections with cameras installed is less than 6 accidents. OThe data suggest that the populaton mean is significantly less than 6 at a = 0.05, so there is statistically significant evidence to conclude that the population mean number of accidents per year at intersections with cameras installed is less than 6 accidents.

Name: The average number of accidents at controlled intersections per year
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Description: The average number of accidents at controlled intersections per year is 6. Is this average less for intersectionswith cameras installed? The 45 randomly observed intersections with cameras installed had an average of 5.6accidents per year and the st

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Need help with parts C & D The proportion of Americans who have frequent migraines is 15.2% according to the CDC. An acupuncturist claims that her treatment can reduce this figure significantly. A random sample of 191 Americans is administered the acupuncturists treatment and 25 report experiencing migraines.a. State Hypotheses to the scenario using the correct symbols. b. What is the sample proportion? (Round to 2 decimal places) ˆpp^= c. Suppose the P-value is calculated to be 0.0318What would your decision be for this test using α=α= 0.025? fail to reject the null accept the null reject the null d. Write a conclusion in terms of the acupuncturist's claim. Use the model provided by the instructor. Assume no errors were made.
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A formula that provides the evidence against a null hypothesis is called: A. Test-statistic B. Population statistic C. Both a and b D. Neither a or b
1.Determine the test statistic. (Round to three decimal places as needed.) 2.Determine the P-value of the test statistic. (Round to four decimal places as needed.) 3. use 0.01 significance to test the claim
what is the right answer because i am not sure of my answer ?
Microsoft Word -... 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 Select an answer b. The null and alternative hypotheses would be: Select an answer v Ho: ? H₁: ? Select an answer ✓ c. The test statistic ? = d. The p-value= e. The p-value is ? a f. Based on this, we should Select an answer the null hypothesis. g. Thus, the final conclusion is that ... (please enter a decimal) (Please enter a decimal) (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) 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% O The data suggest the…
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