6. The mean cost for a home nationwide is reported to be $80,000 with a standard...
6. The mean cost for a home nationwide is reported to be $80,000 with a standard deviation equal to $9,500. To test that the mean in Omaha is less than the national mean, 35 homes for sale are randomly selected and the mean is found to be $65,000. Assuming the variability is the same locally as nationally, write the appropriate null and alternative hypotheses for this situation, calculate the p-value for the test, and write your conclusion.
7. For a national compliance test for diabetics, μ = 74 and σ = 4. To test that diabetic patients at a particular hospital have this mean versus a value different than the national mean, the test is administered to 50 diabetic patients at the hospital, and x = 78.5. Assuming the variability in test scores at the hospital is the same as that nationally, find the p-value for this hypothesis test, and write your conclusion.
Homework Answers
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6. The mean cost for a home nationwide is reported to be $80,000
with a standard...
Please answer both ill appreciate it. I tried doing them & have an answer but I...
Please answer both ill appreciate it. I tried doing them &
have an answer but I want them checked before I hand it in.
10 A large study involving over 20,000 individuals shows that the mean percentage intake of kilocalories from fat was 39% with a range from 6% to 72%. A small sample study was conducted at a university hospital to determine if the mean intake of patients at that hospital was different from 39%. A sample of 15...
It is reported in USA Today that the average flight cost nationwide is $484.314. You have...
It is reported in USA Today that the average flight cost nationwide is $484.314. You have never paid close to that amount and you want to perform a hypothesis test that the true average is actually greater than $484.314. The hypotheses for this situation are as follows: Null Hypothesis: μ ≤ 484.314, Alternative Hypothesis: μ > 484.314. A random sample of 34 flights shows an average cost of $489.228 with a standard deviation of $53.5284. What is the test statistic...
Question 12 (1 point) It is reported in USA Today that the average flight cost nationwide is $380.51. You have nev...
Question 12 (1 point) It is reported in USA Today that the average flight cost nationwide is $380.51. You have never paid close to that amount and you want to perform a hypothesis test that the true average is actually different from $380.51. The hypotheses for this situation are as follows: Null Hypothesis: u = 380.51, Alternative Hypothesis: u 380.51. You take a random sample of national flight cost information and perform a one sample mean hypothesis test. You observe...
It is reported in USA Today that the average flight cost nationwide is $458.78. You have...
It is reported in USA Today that the average flight cost nationwide is $458.78. You have never paid close to that amount and you want to perform a hypothesis test that the true average is actually less than $458.78. The hypotheses for this situation are as follows: Null Hypothesis: μ ≥ 458.78, Alternative Hypothesis: μ < 458.78. You take a random sample of national flight cost information and perform a one sample mean hypothesis test. You observe a 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 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...
Next Previous 3 4 5 6 Question 2 of 6 (1 point) View problem in a pop-up According to the National Association of Home Builders, the average cost of building a home in the Northeast is $117.91...
Next Previous 3 4 5 6 Question 2 of 6 (1 point) View problem in a pop-up According to the National Association of Home Builders, the average cost of building a home in the Northeast is $117.91 per square foot. A random sample of 37 new homes indicated that the mean cost was $121.14 and the standard deviation was $20. Can it be concluded that the mean Fo cost differs from $117.91, using the 0.10 level of significance? Use thP...
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...
Part 1. The insulin pump is a device that delivers insulin to a diabetic patient at...
Part 1. The insulin pump is a device that delivers insulin to a diabetic patient at regular intervals. It presumably regulates insulin better than standard injections. However, data to establish this point are few, especially in children. The following study was set up to assess the effect of use of the insulin pump on HbgA1c, which is a long-term marker of compliance with insulin protocols. In general, a normal range for HgbA1c is <7%. Data were collected on 256 diabetic...
30. According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA), the National Institutes of...
30. According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA), the National Institutes of Health (NIH), The mean number of alcoholic drinks consumed by college students per week nationwide is 5.3. A college president wonders if the mean number of drinks consumed per week by students enrolled at her college is actually lower than the national average. In a commissioned study, 68 students are selected rand om ly from a list of all students enrolled at the college....
Please answer both ill appreciate it. I tried doing them &
have an answer but I want them checked before I hand it in.
10 A large study involving over 20,000 individuals shows that the mean percentage intake of kilocalories from fat was 39% with a range from 6% to 72%. A small sample study was conducted at a university hospital to determine if the mean intake of patients at that hospital was different from 39%. A sample of 15...
Question 12 (1 point) It is reported in USA Today that the average flight cost nationwide is $380.51. You have never paid close to that amount and you want to perform a hypothesis test that the true average is actually different from $380.51. The hypotheses for this situation are as follows: Null Hypothesis: u = 380.51, Alternative Hypothesis: u 380.51. You take a random sample of national flight cost information and perform a one sample mean hypothesis test. You observe...
Next Previous 3 4 5 6 Question 2 of 6 (1 point) View problem in a pop-up According to the National Association of Home Builders, the average cost of building a home in the Northeast is $117.91 per square foot. A random sample of 37 new homes indicated that the mean cost was $121.14 and the standard deviation was $20. Can it be concluded that the mean Fo cost differs from $117.91, using the 0.10 level of significance? Use thP...
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...
Part 1. The insulin pump is a device that delivers insulin to a diabetic patient at regular intervals. It presumably regulates insulin better than standard injections. However, data to establish this point are few, especially in children. The following study was set up to assess the effect of use of the insulin pump on HbgA1c, which is a long-term marker of compliance with insulin protocols. In general, a normal range for HgbA1c is <7%. Data were collected on 256 diabetic...
30. According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA), the National Institutes of Health (NIH), The mean number of alcoholic drinks consumed by college students per week nationwide is 5.3. A college president wonders if the mean number of drinks consumed per week by students enrolled at her college is actually lower than the national average. In a commissioned study, 68 students are selected rand om ly from a list of all students enrolled at the college....
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