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Qus write appropriate hypothesis and calculate sample test statistic
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Question 42 2 pts 42. To test the claim that o > 3.1, a random sample...
Question 43 2 pts 16. To test the claim that o < 2.2, a random sample...
Question 43 2 pts 16. To test the claim that o < 2.2, a random sample of size n=25 is obtained from a population that is known to be normally distributed. Use s = 3.91 and a = 005 level of significance
Question 43 2 pts 16. To test the claim that o < 2.2, a random sample...
Question 43 2 pts 16. To test the claim that o < 2.2, a random sample of size n=25 is obtained from a population that is known to be normally distributed. Use s = 3.91 and a = 0.05 level of significance.
To test Ho : ?= 20 versus H1 : ?< 20, a simple random sample of...
To test Ho : ?= 20 versus H1 : ?< 20, a simple random sample of size n = 17 is obtained from a population that is known to be normally distributed Answer parts (a)-(d) E Click here to view the t-Distribution Area in Right Tail (a) If x 18.3 and s 3.8, compute the test statistic. t-(Round to two decimal places as needed.)
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...
a through d please To test Ho = 50 versus Hy < 50, a random sample...
a through d please
To test Ho = 50 versus Hy < 50, a random sample of size n=23 is obtained from a population that is known to be normally distributed. Complete parts (a) through (d) below. Click here to view the t-Distribution Area in Right Tail (a) If x = 46 4 and s= 12.9, compute the test statistic. to-(Round to three decimal places as needed) (b) If the researcher decides to test this hypothesis at the a=0.05 level...
The data to the right show the average retirement ages for a random sample of workers...
The data to the right show the average retirement ages for a random sample of workers in Country A and a random sample of workers in Country B. Complete parts a and b. Country A 63.8 years 30 Country B 66.5 years 30 Sample mean Sample size Population standard deviation 5.0 years 5.3 years a. Perform a hypothesis test using a = 0.05 to determine if the average retirement age in Country B is higher than it is in Country...
Question 10 < B0/20 pts 2 Details Test the claim that the proportion of people who...
Question 10 < B0/20 pts 2 Details Test the claim that the proportion of people who own cats is significantly different than 50% at the 0.1 significance level. The null and alternative hypothesis would be: Ho:p> 0.5 Hp:P < 0.5 Hp:P = 0.5 Hp: A > 0.5 H:p <0.5 H:p > 0.5 H:P +0.5 H:<0.5 O O O O Hon = 0.5 Ho: < 0.5 H4 + 0.5 H :: > 0.5 O The test is: right-tailed left-tailed two-tailed O...
10) (2 pts) The Centers for Disease Control (CDC) would like to test the hypothesis that...
10) (2 pts) The Centers for Disease Control (CDC) would like to test the hypothesis that the proportion of obese adults in the U.S. has increased this year when compared to last year. A random sample of 125 adults this year found that 56 were obese. Last year, a random sample of 140 adults found that 42 were obese. If Population 1 is defined as this year and Population 2 is defined as last year, the correct hypothesis statement for...
The test statistic of z= 1.31 is obtained when testing the claim that p>0.7. a. Identify...
The test statistic of z= 1.31 is obtained when testing the claim that p>0.7. a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed. b. Find the P-value. c. Using a significance level of a = 0.01, should we reject Ho or should we fail to reject Ho?
The one-sample t-statistic for a test of Ho: = 42 versus H:# < 42 based on...
The one-sample t-statistic for a test of Ho: = 42 versus H:# < 42 based on n = 15 observations has the value t = -2.138, where H, and Hare the null and alternative hypotheses, respectively. The sample size is denoted by n.
Question 43 2 pts 16. To test the claim that o < 2.2, a random sample of size n=25 is obtained from a population that is known to be normally distributed. Use s = 3.91 and a = 005 level of significance
Question 43 2 pts 16. To test the claim that o < 2.2, a random sample of size n=25 is obtained from a population that is known to be normally distributed. Use s = 3.91 and a = 0.05 level of significance.
To test Ho : ?= 20 versus H1 : ?< 20, a simple random sample of size n = 17 is obtained from a population that is known to be normally distributed Answer parts (a)-(d) E Click here to view the t-Distribution Area in Right Tail (a) If x 18.3 and s 3.8, compute the test statistic. t-(Round to two decimal places as needed.)
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...
a through d please
To test Ho = 50 versus Hy < 50, a random sample of size n=23 is obtained from a population that is known to be normally distributed. Complete parts (a) through (d) below. Click here to view the t-Distribution Area in Right Tail (a) If x = 46 4 and s= 12.9, compute the test statistic. to-(Round to three decimal places as needed) (b) If the researcher decides to test this hypothesis at the a=0.05 level...
The data to the right show the average retirement ages for a random sample of workers in Country A and a random sample of workers in Country B. Complete parts a and b. Country A 63.8 years 30 Country B 66.5 years 30 Sample mean Sample size Population standard deviation 5.0 years 5.3 years a. Perform a hypothesis test using a = 0.05 to determine if the average retirement age in Country B is higher than it is in Country...
Question 10 < B0/20 pts 2 Details Test the claim that the proportion of people who own cats is significantly different than 50% at the 0.1 significance level. The null and alternative hypothesis would be: Ho:p> 0.5 Hp:P < 0.5 Hp:P = 0.5 Hp: A > 0.5 H:p <0.5 H:p > 0.5 H:P +0.5 H:<0.5 O O O O Hon = 0.5 Ho: < 0.5 H4 + 0.5 H :: > 0.5 O The test is: right-tailed left-tailed two-tailed O...
10) (2 pts) The Centers for Disease Control (CDC) would like to test the hypothesis that the proportion of obese adults in the U.S. has increased this year when compared to last year. A random sample of 125 adults this year found that 56 were obese. Last year, a random sample of 140 adults found that 42 were obese. If Population 1 is defined as this year and Population 2 is defined as last year, the correct hypothesis statement for...
The test statistic of z= 1.31 is obtained when testing the claim that p>0.7. a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed. b. Find the P-value. c. Using a significance level of a = 0.01, should we reject Ho or should we fail to reject Ho?
The one-sample t-statistic for a test of Ho: = 42 versus H:# < 42 based on n = 15 observations has the value t = -2.138, where H, and Hare the null and alternative hypotheses, respectively. The sample size is denoted by n.
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