Question

Perform the following tests answering each part. Assume random samples taken from populations that are normally...

Perform the following tests answering each part. Assume random samples taken from populations that are normally distributed. The health of employees is monitored by weighing them. A sample of 54 employees has a mean weight of 185 lb and σ is known to be 26.2 lb, use a 0.10 sig. level to test the claim that the population mean of employees weights is less than 200 lb.

1.---What is the Claim in symbolic Format?

2.---What is the Rest in symbolic Format?

3.---What is the H0?

4.---What is the H1?

5.---What is α?

6.---What type of tail test is this?

7.---What is the test statistic?

8.---What is the value of the test statistic?

9.---What is the p-value?

10.---Do you Reject or Fail to Reject the H0?

11---What is the final conclusion about the claim?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Perform the following tests answering each part. Assume random samples taken from populations that are normally...
Perform the following tests answering each part. Assume random samples taken from populations that are normally distributed. A manufacturer considers his production process to be out of control when defects exceed 3%. In a random sample of 85 items, the defect rate is 5.9% but the manager claims that this is only a sample fluctuation and production is not really out of control. At the 0.01 level of significance, test the manager's ---What is the Claim in symbolic Format? Question...
Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final...
Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. The health of employees is monitored by periodically weighing them in. A sample of 54 employees has a mean weight of 183.9 lb. Assuming that ? is known to be 121.2 lb, use a 0.10 significance level to test the claim that the population mean of all such employees weights is less than 200 lb.
Question 2 The health of employees is monitored by periodically weighing them in. A sample of...
Question 2 The health of employees is monitored by periodically weighing them in. A sample of 54 employees has a mean weight of 183.9 lb. Assuming that σ is known to be 121.2 lb, use a 0.10 significance level to test the claim that the population mean of all such employees weights is less than 200 lb. (a) State the null and alternative hypotheses for the test. [3 marks] (b) Calculate the value of the test statistic for this test....
The health of employees is monitored by periodically weighing them in. A sample of 54 employees...
The health of employees is monitored by periodically weighing them in. A sample of 54 employees has a mean weight of 183.9 lb. Assuming that σ is known to be 21.2 lb, use a 0.05 significance level to test the claim that the population mean of all such employees weights is less than 200 lb. Use the critical value method. Initial Claim: Null Hypothesis: Alternative Hypothesis Test statistic (make sure you state which test statistic that you are using): Critical...
1) Independent random samples, each containing 90 observations, were selected from two populations. The samples from...
1) Independent random samples, each containing 90 observations, were selected from two populations. The samples from populations 1 and 2 produced 21 and 14 successes, respectively. Test H0:(p1?p2)=0 against Ha:(p1?p2)?0. Use ?=0.07. (a) The test statistic is (b) The P-value is (c) The final conclusion is A. We can reject the null hypothesis that (p1?p2)=0 and accept that (p1?p2)?0. B. There is not sufficient evidence to reject the null hypothesis that (p1?p2)=0. 2)Two random samples are taken, one from among...
Assume that both samples are independent simple random samples from populations having normal distributions. 4) A...
Assume that both samples are independent simple random samples from populations having normal distributions. 4) A researcher obtained independent random samples of men from two different towns. She recorded the weights of the men. The results are summarized below: Town A Town B n1= 41 n 2 = 21 x1 = 165.1 lb x2 = 159.5 lb s1 = 34.4 lb s2 = 28.6 lb Use a 0.05 significance level to test the claim that there is more variance in...
Consider the following summary statistics, calculated from two independent random samples taken from normally distributed populations....
Consider the following summary statistics, calculated from two independent random samples taken from normally distributed populations. Sample 1 x¯1=20.87 s21=2.01 n1=16 Sample 2 x¯2=24.00 s22=3.36 n2=15 Test the null hypothesis H0:μ1=μ2against the alternative hypothesis HA:μ1<μ2. a) Calculate the test statistic for the Welch Approximate t procedure. Round your response to at least 3 decimal places. b) The Welch-Satterthwaite approximation to the degrees of freedom is given by df = 26.366427. Using this information, determine the range in which the p-value...
For all hypothesis tests: Assume all samples are simple random samples selected from normally distributed populations....
For all hypothesis tests: Assume all samples are simple random samples selected from normally distributed populations. If testing means of two independent samples, assume variances are unequal. For each test give the null and alternative hypothesis, p-value, and conclusion as it relates to the claim. In a random sample of 360 women, 65% favored stricter gun control laws. In a random sample of 220 men, 60% favored stricter gun control laws. Test the claim that the proportion of women favoring...
A random sample of five observations from three normally distributed populations produced the following data: (You...
A random sample of five observations from three normally distributed populations produced the following data: (You may find it useful to reference the F table.) Treatments A B C 25 17 22 25 19 26 27 25 26 32 18 30 18 17 27 x−Ax−A = 25.4 x−Bx−B = 19.2 x−Cx−C = 26.2 s2AsA2 = 25.3 s2BsB2 = 11.2 s2CsC2 = 8.2 Click here for the Excel Data File a. Calculate the grand mean. (Round intermediate calculations to at least...
Independent random samples, each containing 70 observations, were selected from two populations. The samples from populations...
Independent random samples, each containing 70 observations, were selected from two populations. The samples from populations 1 and 2 produced 33 and 23 successes, respectively. Test H 0 :( p 1 − p 2 )=0 H0:(p1−p2)=0 against H a :( p 1 − p 2 )≠0 Ha:(p1−p2)≠0 . Use α=0.01 α=0.01 . (a) The test statistic is (b) The P-value is (c) The final conclusion is A. We can reject the null hypothesis that ( p 1 − p 2...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT