Question

Results from a civil servant exam are shown in the table to the right. Is there...

Results from a civil servant exam are shown in the table to the right. Is there sufficient evidence to support the claim that the results from the test are​ discriminatory? Use a 0.01 significance level.

Passed

Failed

White candidates

2020

1313

Minority candidates

77

2626

Determine the null and alternative hypotheses.

Determine the test statistic. chi squaredχ2=

P Value=

Homework Answers

Answer #1

p-value is less than 0.01

Therefore reject Ho at 0.01 l.o.s.

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
A study was done on prot and non-pro tests. The results are shown in the table....
A study was done on prot and non-pro tests. The results are shown in the table. 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 significance level 0.01 for both parts. ___________________________________________________________________ Pro Non-pro    μ    μ1    μ2 n 34    32   x    74.86    83.25 s    10.51    18.27 _______________________________________________...
The table below includes results from polygraph​ (lie detector) experiments conducted by researchers. In each​ case,...
The table below includes results from polygraph​ (lie detector) experiments conducted by researchers. In each​ case, it was known if the subjected lied or did not​ lie, so the table indicates when the polygraph test was correct. Use a 0.05 significance level to test the claim that whether a subject lies is independent of the polygraph test indication. Do the results suggest that polygraphs are effective in distinguishing between truth and​ lies? _   Did_Not_Lie   Lied Polygraph_indicated_lie   7   44 Polygraph_indicated_no_lie   29  ...
The table below includes results from polygraph​ (lie detector) experiments conducted by researchers. In each​ case,...
The table below includes results from polygraph​ (lie detector) experiments conducted by researchers. In each​ case, it was known if the subjected lied or did not​ lie, so the table indicates when the polygraph test was correct. Use a 0.05 significance level to test the claim that whether a subject lies is independent of the polygraph test indication. Do the results suggest that polygraphs are effective in distinguishing between truth and​ lies? Determine the null and alternative hypotheses. A. Ho​:...
The following contingency table shows the distribution of grades earned by students taking a midterm exam...
The following contingency table shows the distribution of grades earned by students taking a midterm exam in an MBA​ class, categorized by the number of hours the students spent studying for the exam. Complete parts a. and b. below. TIME SPENT STUDYING A B C LESS THAN 3 HOURS 4 19 8 3-5 HOURS 18 17 5 MORE THAN 5 HOURS 16 13 4 a. Using APLHA = 0.01 perform a​ chi-square test to determine if a​ student's grade on...
Consider a drug testing company that provides a test for marijuana usage. Among 291tested​ subjects, results...
Consider a drug testing company that provides a test for marijuana usage. Among 291tested​ subjects, results from 27subjects were wrong​ (either a false positive or a false​ negative). Use a 0.05 significance level to test the claim that less than 10 percent of the test results are wrong. Identify the null and alternative hypotheses for this test. Choose the correct answer below. A. Upper H 0 ​: pless than 0.1 Upper H 1 ​: pequals 0.1 B. Upper H 0...
Randomly selected birth records were​ obtained, and categorized as listed in the table to the right....
Randomly selected birth records were​ obtained, and categorized as listed in the table to the right. Use a 0.01 significance level to test the reasonable claim that births occur with equal frequency on the different days of the week. How might the apparent lower frequencies on Saturday and Sunday be​ explained? Day Sunday Monday Tuesday Wednesday Thursday Friday Saturday Number of Births 50 58 65 64 59 56 35 Determine the null and alternative hypotheses: Calculate the test statistic X2...
Assume that a simple random sample has been selected from a normally distributed population and test...
Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Identify the null and alternative? hypotheses, test? statistic, critical? value(s), and state the final conclusion that addresses the original claim. A simple random sample of pages from a dictionary is obtained. Listed below are the numbers of words defined on those pages. Given that this dictionary has 1459 pages with defined? words, the claim that there are more than? 70,000 defined...
Goalkeeper Jump Left Center Right Kick to Left 53 44 38 Kick to Center 36 13...
Goalkeeper Jump Left Center Right Kick to Left 53 44 38 Kick to Center 36 13 34 Kick to Right 48 99 56 In​ soccer, serious fouls result in a penalty kick with one kicker and one defending goalkeeper. The accompanying table summarizes results from 291291 kicks during games among top teams. In the​ table, jump direction indicates which way the goalkeeper​ jumped, where the kick direction is from the perspective of the goalkeeper. Use a 0.05 significance level to...
The data in the table to the right resulted from an experiment that utilized a completely...
The data in the table to the right resulted from an experiment that utilized a completely randomized design. Complete parts a and b below. Treatment 1 Treatment 2 Treatment 3 3.7 5.2 1.81 1.2 2.8 0.30 4.3 4.2 2.1 5.9 3.8 1.8 a. Use statistical software or the appropriate calculation formulas to complete the ANOVA table below. Source df    SS MS    F statistic Treatments Error Total ​(Round to three decimal places as​ needed.) b. Test the null hypothesis...
A statistics instructor is interested in determining whether or not a review session improved student performance...
A statistics instructor is interested in determining whether or not a review session improved student performance on the final exam. The review session was administered to a sample of students (n=32) in an attempt to determine if this has a positive effect on exam performance. Based on information gathered in previous semesters, the population mean for the final exam is 75.2. The sample mean obtained from the 32 students is 80 with a sample standard deviation of 12.   Use a...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT