To test Ho: p=0.35 versus Hy:p>0.35, a simple random sample of n = 200 individuals is obtained and x = 69 successes are observed. (a) What does it mean to make a Type Il error for this test? (b) If the researcher decides to test this hypothesis at the a =
To test Ho: p=0.35 versus Hy:p>0.35, a simple random sample of n = 200 individuals is obtained and x = 69 successes are observed. (a) What does it mean to make a Type Il error for this test? (b) If the researcher decides to test this hypothesis at the a = 0.01 level of significance, compute the probability of making a Type II error, B, if the true population proportion is 0.38. What is the power of the test? (c) Redo part (b) if the true population proportion is 0.39.
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To test Ho: p=0.35 versus Hy:p>0.35, a simple random sample of n = 200 individuals is obtained and x = 69 successes are observed. (a) What does it mean to make a Type Il error for this test? (b) If the researcher decides to test this hypothesis at the a =
please right the answer that i can understand please In December 2004, 39% of students in...
please right the answer that i can understand please
In December 2004, 39% of students in high school were satisfied with the lunches supplied through the school. In May 2010, an organization conducted a poll of 851 students in high school and asked if they were satisfied with the lunches supplied through the school. Of the 851 surveyed, 298 indicated they were satisfied. Does this suggest the proportion of students satisfied with the quality of lunches has decreased? (a) What...
please right the answer clear In December 2004, 39% of students in high school were satisfied...
please right the answer clear
In December 2004, 39% of students in high school were satisfied with the lunches supplied through the school. In May 2010, an organization conducted a poll of 851 students in high school and asked if they were satisfied with the lunches supplied through the school of the 851 surveyed, 298 indicated they were satisfied. Does thi suggest the proportion of students satisfied with the quality of lunches has decreased? (a) What does it mean to...
3. (25 points) To test Ho: σ 0.35 versus H1: σ < 0.35, a random sample...
3. (25 points) To test Ho: σ 0.35 versus H1: σ < 0.35, a random sample of size n = 41 is obtained from a population that is known to be normally distributed a. If the sample standard deviation is determined to be s 0.23, compute the test statistic. (5 pts) b. If the researcher decides to test this hypothesis at the a 0.01 level of significance , determine the critical value. (5 pts) c. Draw a chi-square distribution and...
To test Ho: σ=4.6 versus H1: σ≠4.6, a random sample of size n=11 is obtained from...
To test Ho: σ=4.6 versus H1: σ≠4.6, a random sample of size n=11 is obtained from a population that is known to be normally distributed. (a) If the sample standard deviation is determined to be s=5.6, compute the test statistic. (b) If the researcher decides to test this hypothesis at the α=0.01 level of significance, use technology to determine the P-value. (c) Will the researcher reject the null hypothesis?
1. Ho: μ 100 versus H1: μ # 100, a simple random sample of size n...
1. Ho: μ 100 versus H1: μ # 100, a simple random sample of size n 23 To test is obtained from a population that is known to be normally distributed: (a) If 104.8 and s-9.2, compute the test statistic. (b) If the researcher decides to test this hypothesis at the a 0.01 level of significance, determine the critical values. (c) Draw ar-distribution that depicts the critical region. (d) Will the researcher reject the null hypothesis? Why? Then state the...
1. Ho: μ-100 versus H1: μ # 100, a simple random sample of size n 23...
1. Ho: μ-100 versus H1: μ # 100, a simple random sample of size n 23 To test is obtained from a population that is known to be normally distributed: (a) If = 104.8 and s = 9.2, compute the test statistic. (b) If the researcher decides to test this hypothesis at the a 0.01 level of significance, determine the critical values. (c) Draw a r-distribution that depicts the critical region. (e) Construct a 99% confidence interval to test the...
To test Ho: p= 100 versus Hy: p* 100, a simple random sample size of n...
To test Ho: p= 100 versus Hy: p* 100, a simple random sample size of n = 20 is obtained from a population that is known to be normally distributed. Answer parts (a)-(d). Click here to view the t-Distribution Area in Right Tail. (a) If x = 105.4 and s= 9.1, compute the test statistic. (Round to three decimal places as needed.) ta (b) If the researcher decides to test this hypothesis at the a=0.01 level of significance, determine the...
To test Ho: = 50 versus H=50, a simple random sample of size n = 40...
To test Ho: = 50 versus H=50, a simple random sample of size n = 40 is obtained. Complete parts (a) through below Click the icon to view the table of critical t-values (a) Does the population have to be normally distributed to test this hypothesis by using t-distribution methods? Why? O A. No-there are no constraints in order to perform a hypothesis test. O B. No-since the sample size is at least 30, the underlying population does not need...
To test Ho: p= 100 versus Hy: p + 100, a simple random sample size of...
To test Ho: p= 100 versus Hy: p + 100, a simple random sample size of n = 19 is obtained from a population that is known to be normally distributed. Answer parts (a)-(d). Click here to view the t-Distribution Area in Right Tail. (a) If x = 105.4 and s = 9.7, compute the test statistic. t= (Round to three decimal places as needed.) (b) If the researcher decides to test this hypothesis at the a= 0.01 level of...
105, a simple random sarnple of size n = 25 is To test Ho : μ...
105, a simple random sarnple of size n = 25 is To test Ho : μ = 105 versus H1 : μ obtained (a) Ifx 101.9 and s 5.9, compute the test statistic. (b) Draw a t-distribution with the area that represents the p-value shaded. (c) Approximate and interpret the p-value. (d) If the researcher decides to test this hypothesis at the α 0.01 level of significance, will the researcher reject the null hypothesis? Why?
please right the answer that i can understand please
In December 2004, 39% of students in high school were satisfied with the lunches supplied through the school. In May 2010, an organization conducted a poll of 851 students in high school and asked if they were satisfied with the lunches supplied through the school. Of the 851 surveyed, 298 indicated they were satisfied. Does this suggest the proportion of students satisfied with the quality of lunches has decreased? (a) What...
please right the answer clear
In December 2004, 39% of students in high school were satisfied with the lunches supplied through the school. In May 2010, an organization conducted a poll of 851 students in high school and asked if they were satisfied with the lunches supplied through the school of the 851 surveyed, 298 indicated they were satisfied. Does thi suggest the proportion of students satisfied with the quality of lunches has decreased? (a) What does it mean to...
3. (25 points) To test Ho: σ 0.35 versus H1: σ < 0.35, a random sample of size n = 41 is obtained from a population that is known to be normally distributed a. If the sample standard deviation is determined to be s 0.23, compute the test statistic. (5 pts) b. If the researcher decides to test this hypothesis at the a 0.01 level of significance , determine the critical value. (5 pts) c. Draw a chi-square distribution and...
1. Ho: μ 100 versus H1: μ # 100, a simple random sample of size n 23 To test is obtained from a population that is known to be normally distributed: (a) If 104.8 and s-9.2, compute the test statistic. (b) If the researcher decides to test this hypothesis at the a 0.01 level of significance, determine the critical values. (c) Draw ar-distribution that depicts the critical region. (d) Will the researcher reject the null hypothesis? Why? Then state the...
1. Ho: μ-100 versus H1: μ # 100, a simple random sample of size n 23 To test is obtained from a population that is known to be normally distributed: (a) If = 104.8 and s = 9.2, compute the test statistic. (b) If the researcher decides to test this hypothesis at the a 0.01 level of significance, determine the critical values. (c) Draw a r-distribution that depicts the critical region. (e) Construct a 99% confidence interval to test the...
To test Ho: p= 100 versus Hy: p* 100, a simple random sample size of n = 20 is obtained from a population that is known to be normally distributed. Answer parts (a)-(d). Click here to view the t-Distribution Area in Right Tail. (a) If x = 105.4 and s= 9.1, compute the test statistic. (Round to three decimal places as needed.) ta (b) If the researcher decides to test this hypothesis at the a=0.01 level of significance, determine the...
To test Ho: = 50 versus H=50, a simple random sample of size n = 40 is obtained. Complete parts (a) through below Click the icon to view the table of critical t-values (a) Does the population have to be normally distributed to test this hypothesis by using t-distribution methods? Why? O A. No-there are no constraints in order to perform a hypothesis test. O B. No-since the sample size is at least 30, the underlying population does not need...
To test Ho: p= 100 versus Hy: p + 100, a simple random sample size of n = 19 is obtained from a population that is known to be normally distributed. Answer parts (a)-(d). Click here to view the t-Distribution Area in Right Tail. (a) If x = 105.4 and s = 9.7, compute the test statistic. t= (Round to three decimal places as needed.) (b) If the researcher decides to test this hypothesis at the a= 0.01 level of...
105, a simple random sarnple of size n = 25 is To test Ho : μ = 105 versus H1 : μ obtained (a) Ifx 101.9 and s 5.9, compute the test statistic. (b) Draw a t-distribution with the area that represents the p-value shaded. (c) Approximate and interpret the p-value. (d) If the researcher decides to test this hypothesis at the α 0.01 level of significance, will the researcher reject the null hypothesis? Why?
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