Difference among two proportion test by large sample test

Assignment Help Basic Statistics

Reference no: EM1321617

To test whether the significant difference between two proportion test using large sample test.

Many elementary school students in a school district currently have ear infections. A random sample of children in two different schools found that 16 of 42 at one school and 21 of 36 at the other had this infection. At the .05 level of significance, is there sufficient evidence to conclude that a difference exists between the proportion of students who have ear infections at one school and the other?

a. No, there is not sufficient information to reject the hypothesis that the proportions of students at the two schools who have ear infections are the same because the test value -1.78 is inside the acceptance region (-1.96,1.96).

b. Yes, there is sufficient information to reject the hypothesis that the proportions of students at the two schools who have ear infections are the same because the test value -2.34 is outside the acceptance region (-1.96,1.96).

c. Yes, there is sufficient information to reject the hypothesis that the proportions of students at the two schools who have ear infections are the same because the test value -8.76 is outside the acceptance region (-1.96,1.96).

d. Yes, there is sufficient information to reject the hypothesis that the proportions of students at the two schools who have ear infections are the same because the test value -15.73 is outside the acceptance region (-1.96,1.96).

Reference no: EM1321617

Questions Cloud

Compare the observed values of the test statistic : Compare your observed values of the test statistic in parts F & G. What conclusion do you reach from this comparison?

Program to count the number of times page is opened : Generate a page in order to count the number of times the page is viewed by the user in a single session. Each time page is refreshed or opened in the browser during the session counts as 1 page view.

Principle problem into manageable sub-problems : Write a detailed research plan of procedure for the goal you have articulated above. Divide the principle problem into manageable sub-problems. Using your responses to the previous questions, formulate a specific research problem, question, or hypoth..

Calculating confidence interval if sample size is given : Calculate the 90% confidence interval about μ if sample size, n, is 55. How does increasing sample size affect margin of error, E?

Difference among two proportion test by large sample test : To test whether the significant difference between two proportion test using large sample test.

Registers and memory address : Suppose that the .data section is mapped to the start at address 0x1800 in memory at run time, Provide the contents of the registers %r1-%r4.

Find the 99% confidence interval : Find the 99% confidence interval

Methods of cost estimation rely primarily on historical data : What methods of cost estimation rely primarily on historical data? Describe the problems an unwary user may encounter with the use of historical cost data.

Modelling with single qualitative independent variable : When modelling E(y) with single qualitative independent variable, number of 0 - 1 dummy variables in model is equal to number of levels of qualitative variable.

User Account

All Pages