Question

Please define p-value. What a p-value is and how to interpret its value. Typically, a p-value...

Please define p-value. What a p-value is and how to interpret its value. Typically, a p-value of 0.05 is used as the significance level. This means that if p > 0.05 we fail to reject Ho (null hypothesis). If p < 0.05 we reject Ho. Discuss whether or not you think 0.05 is too strict or too liberal a value for making statistical claims. Please respond to at least one other student's post.

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
Statistical significance (alpha level; p-value) reflects the odds that a particular finding could have occurred by...
Statistical significance (alpha level; p-value) reflects the odds that a particular finding could have occurred by chance. If the p-value for a difference between two groups is 0.05, it would be expected to occur by chance just 5 times out of 100 (thus, it is likely to be a “real” difference). We define a p-value of less than 0.05 to indicate statistical significance. Suppose a pizza place claims their delivery times are 30 minutes or less on average but you...
1. The P-value of a test of the null hypothesis is a. the probability the null...
1. The P-value of a test of the null hypothesis is a. the probability the null hypothesis is true. b. the probability the null hypothesis is false. c. the probability, assuming the null hypothesis is false, that the test statistic will take a value at least as extreme as that actually observed. d. the probability, assuming the null hypothesis is true, that the test statistic will take a value at least as extreme as that actually observed. 2. The P-value...
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;...
How productive are U.S. workers? One way to answer this question is to study annual profits...
How productive are U.S. workers? One way to answer this question is to study annual profits per employee. A random sample of companies in computers (I), aerospace (II), heavy equipment (III), and broadcasting (IV) gave the following data regarding annual profits per employee (units in thousands of dollars). I (27.6;23.1;14.7;8.9;11.9) II (13.1;9.9;11.7;8.1;6.9;19.5) III ( 22.4;20.2;7.4;12.9;7.7) IV (17.6;16.8;14.4;15.7;10.7;9.4) Shall we reject or not reject the claim that there is no difference in population mean annual profits per employee in each of...
A study is made of residents in Phoenix and its suburbs concerning the proportion of residents...
A study is made of residents in Phoenix and its suburbs concerning the proportion of residents who subscribe to Sporting News. A random sample of n1 = 90 urban residents showed that r1 = 10 subscribed, and a random sample of n2 = 99 suburban residents showed that r2 = 18 subscribed. Does this indicate that a higher proportion of suburban residents subscribe to Sporting News? Use a 5% level of significance. What are we testing in this problem? single...
The Toylot company makes an electric train with a motor that it claims will draw an...
The Toylot company makes an electric train with a motor that it claims will draw an average of no more than 0.8 amps under a normal load. A sample of nine motors were tested, and it was found that the mean current was x = 1.30 amps, with a sample standard deviation of s = 0.43 amps. Perform a statistical test of the Toylot claim. (Use a 1% level of significance.) What are we testing in this problem? single proportionsingle...
A study came up with a p-value of 0.042 with a significance level of 0.05. What...
A study came up with a p-value of 0.042 with a significance level of 0.05. What can you conclude about the claim; would you reject the null hypothesis or fail to reject the null hypothesis?
Professor Jennings claims that only 35% of the students at Flora College work while attending school....
Professor Jennings claims that only 35% of the students at Flora College work while attending school. Dean Renata thinks that the professor has underestimated the number of students with part-time or full-time jobs. A random sample of 80 students shows that 37 have jobs. Do the data indicate that more than 35% of the students have jobs? Use a 5% level of significance. What are we testing in this problem? single proportionsingle mean     (a) What is the level of significance?...
Professor Jennings claims that only 35% of the students at Flora College work while attending school....
Professor Jennings claims that only 35% of the students at Flora College work while attending school. Dean Renata thinks that the professor has underestimated the number of students with part-time or full-time jobs. A random sample of 80 students shows that 38 have jobs. Do the data indicate that more than 35% of the students have jobs? Use a 5% level of significance. What are we testing in this problem? single meansingle proportion     (a) What is the level of significance?...
question 1 what is the p-value if, in a two tail hypothesis test, ZSTAT = +1.20?...
question 1 what is the p-value if, in a two tail hypothesis test, ZSTAT = +1.20? ( ROUND TO 4 DECIMAL PLACES) question 2 ​If, in a​ (two-tail) hypothesis​ test, the​ p-value is 0.0523 , what is your statistical decision if you test the null hypothesis at the 0.02 level of​ significance? Choose the correct answer below? a- since the p value is less than a , do not reject Ho b- since the p value is greater than a...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT