2. You now think that there may be differences in the demand for emergency room services...
2. You now think that there may be differences in the demand for emergency room services depending on the day of the week. In order to correctly staff your emergency room, you decide to look at trends by day of the week. You gather the data by day of week instead of monthly. Question: Is there a difference in the average number of patients being seen in the emergency room by day of week? a. What is the most appropriate test to statistically test this hypothesis? Why? b. State your null and alternative hypothesis in words and symbols. H0: Ha: H0: Ha:
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2. You now think that there may be differences in the demand for
emergency room services...
# of Patients Year Month 2015 2016 1 4825 5262 2 4752 5435 3 4948 5481 4 5041 6081 ...
# of Patients Year Month 2015 2016 1 4825 5262 2 4752 5435 3 4948 5481 4 5041 6081 5 5300 5936 6 5232 5627 7 5151 5856 8 5585 5763 9 5520 5924 10 5136 5787 11 5077 5474 12 5300 5699 2. You now think that there may be differences in the demand for emergency room services depending on the day of the week. In order to correctly staff your emergency room, you decide to look at trends...
Nationally, patients who go to the emergency room wait an average of 6 hours to be...
Nationally, patients who go to the emergency room wait an average of 6 hours to be admitted into the hospital. Do patients at rural hospitals have a higher waiting time? The 11 randomly selected patients who went to the emergency room at rural hospitals waited an average of 6.6 hours to be admitted into the hospital. The standard deviation for these 11 patients was 2.6 hours. What can be concluded at the α = 0.05 level of significance? a. For...
A hospital director is told that 45% of the emergency room visitors are uninsured. The director...
A hospital director is told that 45% of the emergency room visitors are uninsured. The director wants to test the claim that the percentage of uninsured patients is above the expected percentage. A sample of 320 patients found that 160 were uninsured. At the 0.01 level, is there enough evidence to support the director's claim? State the null and alternative hypothesis. Find the value of the test statistic. Specify if this is a one-tailed or two-tailed test. Determine P-value of...
Nationally, patients who go to the emergency room wait an average of 6 hours to be...
Nationally, patients who go to the emergency room wait an average of 6 hours to be admitted into the hospital. Do patients at rural hospitals have a higher waiting time? The 13 randomly selected patients who went to the emergency room at rural hospitals waited an average of 7.9 hours to be admitted into the hospital. The standard deviation for these 13 patients was 2.2 hours. What can be concluded at the the a = 0.05 level of significance level...
Nationally, patients who go to the emergency room wait an average of 7 hours to be admitted into the hospital. Do...
Nationally, patients who go to the emergency room wait an average of 7 hours to be admitted into the hospital. Do patients at rural hospitals have a lower waiting time? The 13 randomly selected patients who went to the emergency room at rural hospitals waited an average of 6.5 hours to be admitted into the hospital. The standard deviation for these 13 patients was 1.4 hours. What can be concluded at the the Q = 0.10 level of significance level...
A hospital director is told that 43 % of the emergency room visitors are uninsured. The...
A hospital director is told that 43 % of the emergency room visitors are uninsured. The director wants to test the claim that the percentage of uninsured patients is over the expected percentage. A sample of 120 patients found that 60 were uninsured. At the 0.01 level, is there enough evidence to support the director's claim? Step 1 of 7: State the null and alternative hypotheses. Answer 2 Points Tables Keypad HO: HA > ev Next A hospital director is...
Think about a population mean that you may be interested in and propose a hypothesis test...
Think about a population mean that you may be interested in and propose a hypothesis test problem for this parameter. Gather appropriate data and post your problem. Include the null and alternative hypothesis, alpha value, p-value, and a conclusion. Make sure that you use appropriate terminology, specify whether you are using the classical method or the p-value method, and fully explain your solution. How do we determine that we are to fail to reject the null hypothesis? What process do...
1. A baseball team claims that the mean length of its games is 2.8 hours. State...
1. A baseball team claims that the mean length of its games is 2.8 hours. State H0 and Ha in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning. State the null hypothesis in words and in symbols. Choose the correct answer below. 2. An Internet provider is trying to gain advertising deals and claims that the mean time a customer spends online per day is greater than...
1. You want to go to your boss and ask for additional staff in your emergency...
1. You want to go to your boss and ask for additional staff in your emergency room. You have noticed an increase in patients in the ER since the previous year. You collect data by month for the two years to compare. Assume that the number of patients are normally distributed. d. You set your level of significance at alpha = 0.05 and determine your t-critical value of 2.074 since you are decided to conduct a independent samples t-test. What...
You worry that individual differences in athletic abilities may be reducing your ability to detect a...
You worry that individual differences in athletic abilities may be reducing your ability to detect a significant effect of the energy gel on exercise endurance. Therefore, you run the study again using a repeated-measures design. You record the number of minutes n = 4 cyclists could maintain high intensity exercise while consuming only water. A week later, you record the number of minutes the same cyclists could maintain high intensity exercise while consuming water and an energy gel every 20...
Nationally, patients who go to the emergency room wait an average of 6 hours to be admitted into the hospital. Do patients at rural hospitals have a higher waiting time? The 13 randomly selected patients who went to the emergency room at rural hospitals waited an average of 7.9 hours to be admitted into the hospital. The standard deviation for these 13 patients was 2.2 hours. What can be concluded at the the a = 0.05 level of significance level...
Nationally, patients who go to the emergency room wait an average of 7 hours to be admitted into the hospital. Do patients at rural hospitals have a lower waiting time? The 13 randomly selected patients who went to the emergency room at rural hospitals waited an average of 6.5 hours to be admitted into the hospital. The standard deviation for these 13 patients was 1.4 hours. What can be concluded at the the Q = 0.10 level of significance level...
A hospital director is told that 43 % of the emergency room visitors are uninsured. The director wants to test the claim that the percentage of uninsured patients is over the expected percentage. A sample of 120 patients found that 60 were uninsured. At the 0.01 level, is there enough evidence to support the director's claim? Step 1 of 7: State the null and alternative hypotheses. Answer 2 Points Tables Keypad HO: HA > ev Next A hospital director is...
You worry that individual differences in athletic abilities may be reducing your ability to detect a significant effect of the energy gel on exercise endurance. Therefore, you run the study again using a repeated-measures design. You record the number of minutes n = 4 cyclists could maintain high intensity exercise while consuming only water. A week later, you record the number of minutes the same cyclists could maintain high intensity exercise while consuming water and an energy gel every 20...
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