Question

When testing claims about σ or σ², the P-value method, the critical value method, and the...

When testing claims about σ or σ², the P-value method, the critical value method, and the confidence interval method are all equivalent in the sense that they will always lead to the same conclusion.

True False

Both the P-value method and the critical value method use the same standard deviation based on the claimed proportion p, so they are equivalent to each other. Is this also true about the confidence interval method.

true or false

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

Homework Answers

Answer #1

The solution to this problem is given by

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
1) Use either the critical value or p-value method for testing hypotheses. 2) Identify the null...
1) Use either the critical value or p-value method for testing hypotheses. 2) Identify the null and alternative hypotheses, test statistic, P-value (or range of P-values), and critical value(s). 3) State your final conclusion that addresses the original claim. Include a confidence interval as well and restate this in your original conclusion. Any basketball fan know that Shaquille O’Neal, one of the NBA’s most dominant centers of the last twenty years, always had difficulty shooting free throws. Over the course...
1) Use either the critical value or p-value method for testing hypotheses. 2) Identify the null...
1) Use either the critical value or p-value method for testing hypotheses. 2) Identify the null and alternative hypotheses, test statistic, P-value (or range of P-values), and critical value(s). 3) State your final conclusion that addresses the original claim. Include a confidence interval as well and restate this in your original conclusion. Two Polish math professors and their students spun a Belgian euro coin 250 times. It landed on heads 140 times. One of the professors concluded that the coin...
In a large clinical trial, 398,890 children were randomly assigned to two groups. The treatment group...
In a large clinical trial, 398,890 children were randomly assigned to two groups. The treatment group consisted of 200,145 children given a vaccine for a certain disease, and 40 of those children developed the disease. The other 198,745 children were given a placebo, and 159 of those children developed the disease. Consider the vaccine treatment group to be the first sample. Complete parts (a) through (d) below. a. Assume that a 0.10 significance level will be used to test the...
true or false When the level of confidence and sample proportion p remain the same, a...
true or false When the level of confidence and sample proportion p remain the same, a confidence interval for a population proportion p based on a sample of n = 200 will be narrower than a confidence interval for p based on a sample of n = 100. When the level of confidence and the sample size remain the same, a confidence interval for a population mean µ will be narrower, when the sample standard deviation s is larger than...
While testing a claim about population mean, if the value of the population standard deviation σ...
While testing a claim about population mean, if the value of the population standard deviation σ is not known, then the distribution we use:CHOOSE    Binomial Distribution Standard Normal Distribution None Student's t-Distribution With H0: p = 0.4, Ha: p < 0.4 , the test statistic is z = – 1.68. Using a 0.05 significance level, the P-value and the conclusion about null hypothesis are:    0.0465; reject H0 0.093; fail to reject H0 0.9535; fail to reject H0 0.0465;...
Q2. This question is testing your understanding of some important concepts about hypothesis testing and confidence...
Q2. This question is testing your understanding of some important concepts about hypothesis testing and confidence intervals. For each part below, you must explain your answer. (a) Suppose we are performing a one-sample t test at the 10% level of significance where the hypotheses are H0 : µ = 0 vs H1 : µ =/ 0. The number of observations is 15. What is the critical value? (b) Suppose we are performing a one-sample t test with H0 : µ...
Use either the critical value or the P-value method you are not required to use both....
Use either the critical value or the P-value method you are not required to use both. State the claim and the hypothesis. Find the critical value(s) and describe the critical (rejection) region You can choose to use the P-value method in this case state the P-value after the test value. Compute the test value (statistic) Make a decision Summarize the results (conclusion) A study was conducted of babies born to mothers who use cocaine during pregnancy, and the following sample...
Find using traditional method or P-value method. Identify the null and alternative hypothesis, test statistic, critical...
Find using traditional method or P-value method. Identify the null and alternative hypothesis, test statistic, critical value(s) or P=value (or range of P-values) as appropriate, and state the final conclusion that addresses the original claim. A company claims that the mean weight of the oatmeal in its packets is 14oz. The weights in ounces of the oats in a random sample of 8 of the oat packets are listed below 14.6 13.8 14.1 13.7 14.0 14.4 13.6 14.2 Test the...
Solve this problem with one of these methods. Critical value method, P-value method, or confidence interval...
Solve this problem with one of these methods. Critical value method, P-value method, or confidence interval estimate method. A clinical trial was conducted to test the effectiveness of the drug zopiclone for treating insomnia in older subjects. Before treatment with zopiclone 16 subjects had a mean wake time of 102.8 min. After treatment with zopiclone the 16 subjects had a mean wake time of 98.9 min and a standard deviation of 42.3 min. Assume that the 16 sample values appear...
When σ is unknown and the sample is of size n ≥ 30, there are two...
When σ is unknown and the sample is of size n ≥ 30, there are two methods for computing confidence intervals for μ. Method 1: Use the Student's t distribution with d.f. = n − 1. This is the method used in the text. It is widely employed in statistical studies. Also, most statistical software packages use this method. Method 2: When n ≥ 30, use the sample standard deviation s as an estimate for σ, and then use the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT