Homework Answers
The statistical software output for this problem is:
Hence,
z test statistic = -0.13
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Question 21 (1 point) Assume you have a hypothesis test as follows. Но : рі —...
Assume you have a hypothesis test as follows. Ho : P1 – P2 = 0 (HA:...
Assume you have a hypothesis test as follows. Ho : P1 – P2 = 0 (HA: P1 – P2 70 You also know based on two surveys that: Survey 1: n1 =81, p =0.40 Survey 2: n2 =84.2 =0.22. Find the Z test statistic. Note: 1- Only round your final answer to 2 decimal places. Enter your final answer with 2 decimal places.
Please help asap!!! Assume you have a hypothesis test as follows. Ho: P1 – P2 =...
Please help asap!!!
Assume you have a hypothesis test as follows. Ho: P1 – P2 = 0 | 1 HA : p1 - P2 # 0 You also know based on two surveys that: Survey 1: N1 =90,Ể1 =0.45 Survey 2: N2 =82,P2 =0.15. Find the Z test statistic. Note: 1- Only round your final answer to 2 decimal places. Enter your final answer with 2 decimal places.
Question 26 (1 point) The government conducts a survey of the population and finds that 119...
Question 26 (1 point) The government conducts a survey of the population and finds that 119 of 590 respondents report voting for party A last election, and 109 of 539 respondents report voting for party A for the next election. If you are conducting a hypothesis testing with a null hypothesis of Pi = P2, calculate the test-statistic (z-score) for this test where you are testing for pi - P2. Note: 1- Round any intermediate numbers to 4 decimal places....
Question 6 (1 point) If p1 0.51,p2 = 0.20, and z = 0.40, and your are...
Question 6 (1 point) If p1 0.51,p2 = 0.20, and z = 0.40, and your are conducting a hypothesis test with the null hypothesis pi = P2 by considering the different pi - P2 then what is SE(p - P2) equal to? Note: 1- Only round your final answer to 2 decimal places. Enter your final answer with 2 decimal places. Your Answer: Answer
(5 points) Weight gain during pregnancy. In 2004, the state of North Carolina released to the...
(5 points) Weight gain during pregnancy. In 2004, the state of North Carolina released to the public a large data set containing information on births recorded in this state. This data set has been of interest to medical researchers who are studying the relationship between habits and practices of expectant mothers and the birth of their children. The following histograms show the distributions of weight gain during pregnancy by 869 younger moms (less than 35 years old) and 134 mature...
(1 point) Independent random samples, each containing 800 observations, were selected from two binomial populations. The...
(1 point) Independent random samples, each containing 800 observations, were selected from two binomial populations. The samples from populations 1 and 2 produced 581 and 221 successes, respectively. (a) Test Ho : (p1 – P2) = 0 against Ha : (Pi – P2) # 0. Use a = 0.01 test statistic = rejection region |z| > The final conclusion is # 0. A. We can reject the null hypothesis that (p1 – P2) = 0 and accept that (p1 –...
Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and then state...
Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and then state the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Among 2076 passenger cars in a particular region, 235 had only rear license plates. Among 333 commercial trucks, 50 had only rear license plates. A reasonable hypothesis is that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars....
(1 point) (For the following question, you may use the "hand calculations" described in lecture. You...
(1 point) (For the following question, you may use the "hand calculations" described in lecture. You must use at least four decimal places for all intermediate calculations and your final answer. If you use R prop.test(), remember to convert the X2 value to a Z value for your answer!) Independent random samples, each containing 80 observations, were selected from two populations. The samples from populations 1 and 2 produced 39 and 29 successes, respectively. Test Ho : (P1 – P2)...
(1 point) (For the following question, you may use the "hand calculations" described in lecture. You...
(1 point) (For the following question, you may use the "hand calculations" described in lecture. You must use at least four decimal places for all intermediate calculations and your final answer. If you use R prop.test(), remember to convert the X2 value to a Z value for your answer!) Independent random samples, each containing 80 observations, were selected from two populations. The samples from populations 1 and 2 produced 59 and 54 successes, respectively. Test Ho : (P1 – P2)...
Question 17 (1 point) Testing if P1 – P2 = 0.07, calculate the test statistic, z,...
Question 17 (1 point) Testing if P1 – P2 = 0.07, calculate the test statistic, z, where p from 65, and P2 = 0.23 sampled from 52. = 0.74 sampled Note: 1- Round any intermediate numbers to 4 decimal places. 2- Round your final answer to 2 decimal places. Enter your final answer with 2 decimal places
Assume you have a hypothesis test as follows. Ho : P1 – P2 = 0 (HA: P1 – P2 70 You also know based on two surveys that: Survey 1: n1 =81, p =0.40 Survey 2: n2 =84.2 =0.22. Find the Z test statistic. Note: 1- Only round your final answer to 2 decimal places. Enter your final answer with 2 decimal places.
Please help asap!!!
Assume you have a hypothesis test as follows. Ho: P1 – P2 = 0 | 1 HA : p1 - P2 # 0 You also know based on two surveys that: Survey 1: N1 =90,Ể1 =0.45 Survey 2: N2 =82,P2 =0.15. Find the Z test statistic. Note: 1- Only round your final answer to 2 decimal places. Enter your final answer with 2 decimal places.
Question 26 (1 point) The government conducts a survey of the population and finds that 119 of 590 respondents report voting for party A last election, and 109 of 539 respondents report voting for party A for the next election. If you are conducting a hypothesis testing with a null hypothesis of Pi = P2, calculate the test-statistic (z-score) for this test where you are testing for pi - P2. Note: 1- Round any intermediate numbers to 4 decimal places....
Question 6 (1 point) If p1 0.51,p2 = 0.20, and z = 0.40, and your are conducting a hypothesis test with the null hypothesis pi = P2 by considering the different pi - P2 then what is SE(p - P2) equal to? Note: 1- Only round your final answer to 2 decimal places. Enter your final answer with 2 decimal places. Your Answer: Answer
(5 points) Weight gain during pregnancy. In 2004, the state of North Carolina released to the public a large data set containing information on births recorded in this state. This data set has been of interest to medical researchers who are studying the relationship between habits and practices of expectant mothers and the birth of their children. The following histograms show the distributions of weight gain during pregnancy by 869 younger moms (less than 35 years old) and 134 mature...
(1 point) Independent random samples, each containing 800 observations, were selected from two binomial populations. The samples from populations 1 and 2 produced 581 and 221 successes, respectively. (a) Test Ho : (p1 – P2) = 0 against Ha : (Pi – P2) # 0. Use a = 0.01 test statistic = rejection region |z| > The final conclusion is # 0. A. We can reject the null hypothesis that (p1 – P2) = 0 and accept that (p1 –...
Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and then state the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Among 2076 passenger cars in a particular region, 235 had only rear license plates. Among 333 commercial trucks, 50 had only rear license plates. A reasonable hypothesis is that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars....
(1 point) (For the following question, you may use the "hand calculations" described in lecture. You must use at least four decimal places for all intermediate calculations and your final answer. If you use R prop.test(), remember to convert the X2 value to a Z value for your answer!) Independent random samples, each containing 80 observations, were selected from two populations. The samples from populations 1 and 2 produced 39 and 29 successes, respectively. Test Ho : (P1 – P2)...
(1 point) (For the following question, you may use the "hand calculations" described in lecture. You must use at least four decimal places for all intermediate calculations and your final answer. If you use R prop.test(), remember to convert the X2 value to a Z value for your answer!) Independent random samples, each containing 80 observations, were selected from two populations. The samples from populations 1 and 2 produced 59 and 54 successes, respectively. Test Ho : (P1 – P2)...
Question 17 (1 point) Testing if P1 – P2 = 0.07, calculate the test statistic, z, where p from 65, and P2 = 0.23 sampled from 52. = 0.74 sampled Note: 1- Round any intermediate numbers to 4 decimal places. 2- Round your final answer to 2 decimal places. Enter your final answer with 2 decimal places
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