Question

Use the given statistics to complete parts​ (a) and​ (b). Assume that the populations are normally...

Use the given statistics to complete parts​ (a) and​ (b). Assume that the populations are normally distributed.

​(a) Test whether μ1>μ2
at the

alphaαequals=0.10

level of significance for the given sample data.​(b) Construct a

90​%

confidence interval about μ1−μ2.

Population 1

Population 2

n

24

6

x overbarx

49.6

44.1

s

7.4

14.1

Homework Answers

Answer #1

Question is answered below.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Use the given statistics to complete parts​ (a) and​ (b). Assume that the populations are normally...
Use the given statistics to complete parts​ (a) and​ (b). Assume that the populations are normally distributed. ​(a) Test whether μ1>μ2 at the alphaαequals=0.01 level of significance for the given sample data.​ (b) Construct a 90​% confidence interval about μ1−μ2. Population 1 Population 2 n 24 23 x overbarx 45.1 43.4 s 5.8 12.7
Use the given statistics to complete parts​ (a) and​ (b). Assume that the populations are normally...
Use the given statistics to complete parts​ (a) and​ (b). Assume that the populations are normally distributed. ​(a) Test whether mu 1μ1greater than>mu 2μ2 at the alphaαequals=0.10 level of significance for the given sample data. ​(b) Construct a 90​% confidence interval about mu μ1−μ2. Population 1 Population 2 n 23 19 x 46.2 45.1 s 5.1 13.4 Find the test statistic for the hypothesis test
Use the given statistics to complete parts​ (a) and​ (b). Assume that the populations are normally...
Use the given statistics to complete parts​ (a) and​ (b). Assume that the populations are normally distributed. ​(a) Test whether mu 1 μ1 greater than > mu 2 μ2 at the alpha α equals = 0.05 0.05 level of significance for the given sample data. ​(b) Construct a 95​% confidence interval about mu 1 μ1 minus − mu 2 μ2. Population 1 Population 2 N 22    N 23 X 50.3 X 48.2 S 5.6 S 10.6 ​(a) Identify the...
Use the given statistics to complete parts​ (a) and​ (b). Assume that the populations are normally...
Use the given statistics to complete parts​ (a) and​ (b). Assume that the populations are normally distributed. ​(a) Test whether mu 1greater thanmu 2 at the alphaequals0.05 level of significance for the given sample data. ​(b) Construct a 90​% confidence interval about mu 1minusmu 2. Population 1 Population 2 n 20 23 x overbar 50.7 46.9 s 4.8 12.8 ​(a) Identify the null and alternative hypotheses for this test. A. Upper H 0​: mu 1not equalsmu 2 Upper H 1​:...
Given in the table are the BMI statistics for random samples of men and women. Assume...
Given in the table are the BMI statistics for random samples of men and women. Assume that the two samples are independent simple random samples selected from normally distributed​ populations, and do not assume that the population standard deviations are equal. Complete parts​ (a) and​ (b) below. Use a 0.01 significance level for both parts. Male BMI Female BMI μ μ1 μ2 n 50 50 x̄ 27.7419 26.4352 s 8.437128 5.693359 a) Test the claim that males and females have...
Consider the following data drawn independently from normally distributed populations: x1 = 34.4 x2 = 26.4...
Consider the following data drawn independently from normally distributed populations: x1 = 34.4 x2 = 26.4 σ12 = 89.5 σ22 = 95.8 n1 = 21 n2 = 23 a. Construct the 90% confidence interval for the difference between the population means. (Negative values should be indicated by a minus sign. Round all intermediate calculations to at least 4 decimal places and final answers to 2 decimal places.) Confidence interval is__________ to__________. b. Specify the competing hypotheses in order to determine...
Two random samples were selected independently from populations having normal distributions. The statistics given below were...
Two random samples were selected independently from populations having normal distributions. The statistics given below were extracted from the samples. Complete parts a through c. x overbar 1 =40.1 x overbar 2=30.5 If σ1=σ2​, s1=33​, and s2=22​, and the sample sizes are n 1=10 and n 2n2equals=1010​, construct a 99​% confidence interval for the difference between the two population means. The confidence interval is ≤μ1−μ2≤
A dependent random sample from two normally distributed populations gives the results shown below. Complete parts...
A dependent random sample from two normally distributed populations gives the results shown below. Complete parts a and b below. n=19 d =28.7 sd=3.8 a. Find the 90% confidence interval for the difference between the means of the two populations. The 90​% confident interval is from a lower limit of _?_ to an upper limit of _?_. b. Find the margin of error for a 90% confidence interval for the difference between the means of the two populations. The margin...
Given in the table are the BMI statistics for random samples of men and women. Assume...
Given in the table are the BMI statistics for random samples of men and women. Assume that the two samples are independent simple random samples selected from normally distributed​ populations, and do not assume that the population standard deviations are equal. Complete parts​ (a) and​ (b) below. Use a 0.010.01 significance level for both parts. Male BMI Female BMI muμ mu 1μ1 mu 2μ2 n 4545 4545 x overbarx 28.274128.2741 25.171825.1718 s 7.4101397.410139 4.3731854.373185
Consider the following data drawn independently from normally distributed populations: (You may find it useful to...
Consider the following data drawn independently from normally distributed populations: (You may find it useful to reference the appropriate table: z table or t table) x−1x−1 = 34.4 x−2x−2 = 26.4 σ12 = 89.5 σ22 = 95.8 n1 = 21 n2 = 23 a. Construct the 90% confidence interval for the difference between the population means. (Negative values should be indicated by a minus sign. Round all intermediate calculations to at least 4 decimal places and final answers to 2...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT