In swimming, clearly you would like to swim fast, but swimming consistent times is also important....

In swimming, clearly you would like to swim fast, but swimming consistent times is also important. A survey of 30 swims by men on a local university's swim team found a variance of their swimming times was 12. A similar survey of 41 swims by swimmers at a different university found the variance was 19. When testing the hypothesis (at the 10% level of significance) that the variances are equal, what is the critical value? (please round your answer to 2 decimal places)

Expert Solution

orchestra answered 2 years ago

You would like see whether the number of chocolate chips is consistent with the picture on...

You would like see whether the number of chocolate chips is consistent with the picture on the bag of cookies. It appears from the picture on the bag that there should be about 5 chips per cookie. We would like to know if this is a reasonable conclusion, or not, given a sample of cookies (two- sided test). Since we don’t have any experience with cookie chip distributions, we are going to conduct a nonparametric test to see if our...

After a long day of driving you take a late-night swim in a motel swimming pool....

After a long day of driving you take a late-night swim in a motel swimming pool. When you go to your room, you realize that you have lost your room key in the pool. You borrow a powerful flashlight and walk around the pool, shining the light into it. The light shines on the key, which is lying on the bottom of the pool, when the flashlight is held y = 1.2 m above the water surface and is directed...

. (Education) A researcher would like to know whether there is a consistent, predictable relationship between...

. (Education) A researcher would like to know whether there is a consistent, predictable relationship between verbal skills and math skills for high school students. A sample of 300 students is obtained and each student is given a standardized English test and a standardized math test. Based on the test results, students are classified as high, medium, or low for verbal skills and for math skills. The results are summarized in the following frequency distribution: verbal skills high medium low...

1. A researcher would like to know whether there is a consistent, predictable relationship between verbal...

1. A researcher would like to know whether there is a consistent, predictable relationship between verbal skills and math skills for high school students. A sample of 200 students is obtained, and each student is given a standardized verbal test and a standardized math test. Based on the test results, students are classified as high or low for verbal skills and for math skills. The results are summarized in the following frequency distribution: Verbal Skills High Low Math skills High...

A psychologist would like to determine whether there is any consistent relationship between intelligence and creativity. The...

A psychologist would like to determine whether there is any consistent relationship between intelligence and creativity. The psychologist obtains a random sample of n = 18 people and administers a standardized IQ test and a creativity test to each individual. Using these data, the psychologist obtains a Pearson correlation of r = +.20 between IQ and creativity. a. Do the sample data provide sufficient evidence to conclude that a real (non-zero) correlation exists in the population? Test at the .05 level of significance. b. If...

I would like the answers for these case study questions showing clearly how they are calculated. ...

I would like the answers for these case study questions showing clearly how they are calculated. Issuer Face Value Coupon Rate Rating Quoted Price $ Years Until Maturity Sinking Fund Call Period ABC Energy 1000 6% AAA 809.10 20 Yes 3 Yrs ABC Energy 1000 0% AAA 211.64 20 Yes N/A Trans Power 1000 10% AA 1025.00 20 Yes 5 Yrs Telco Utilities 1000 12% AA 1300.00 30 No 5 Yrs 1. One of Jill's best clients poses the...

How would fast-food workers introduce bias into the manager's sample of drive-thru times?

A fast-food franchise would like to make decisions about their pricing policy. In order to assess...

A fast-food franchise would like to make decisions about their pricing policy. In order to assess the effect of different price structures on sales a sample of 75 observations is collected. The company collects data on monthly sales revenues (in $1,000 units) and price (in $1 units). SUMMARY OUTPUT Regression Statistics Multiple R 0.625540559 R Square 0.391300991 Adjusted R Square 0.382962648 Standard Error 5.09685747 Observations 75 ANOVA df SS MS F Significance F Regression 1 1219.091184 1219.091184 46.92791 1.97077E-09 Residual...

The professor would also like to know whether viewing the presidential debate would influence students’ intention...

The professor would also like to know whether viewing the presidential debate would influence students’ intention to vote and randomly assigns students to one of two groups. Group one viewed the last presidential debate of the major candidates while the second group did not view the debate. After the debate had aired, both groups were asked to report their intention to vote. The question was formatted in a five-point scale as follows: 1= “I do not intend to vote in...

1. How would you describe this judge’s ability to be neutral, principled and consistent?

Question