A sample of 36 students is found to have a mean score on GMAT Math test was (A + 500). Thestandard deviation is A scores. The same supervisor in the last example like to see if a student5.scored significantly below the population mean score on the GMAT Math test 515. Is theresufficient evidence to support the claim at 10% level of significance?Note that: A is first two-digit number (before English alphabet letter) from your college ID.B is last four-digit number (after English alphabet letter) from your college ID.For example, if your MEC ID is 16F23451, then A = 16 and B =3451

Hypothesis testing involving large samples (n>30) is based on the assumption that the population…

Answered: 5. A sample of 36 students is found to…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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c) A dispensing machine fills Yomi’s yogurt drinks into cups. The volume of a Yomi’s yogurt drink is normally distributed with a mean of 520 ml and a standard deviation of 5 ml.Question(ii) 4.8% of the of the Yomi’s yogurt drink is having the volume to be less than k ml. Find the value of k.
Please solve all four sun parts
Please solve in a descriptive statistic way
6. A psychology professor of a large class became curious as to whether the students who turned in tests first scored differently from the overall mean on the test. The overall mean score on the test was 75 with a standard deviation of 10; the scores were approximately normally distributed. The mean score for the first 20 students to turn in tests was 78. Using the .05 significance level, was the average test score earned by the first 20 students to turn in their tests significantly different from the overall mean?
According to Facebook, the mean number of community pages, groups and events that users are connected to is 80. A random sample of 64 Facebook users showed a mean of 86 connections to community pages, groups, and events. The sample standard deviation is 48. Test at a 5% significance whether the population mean number of connections to community pages, groups and events is greater than 80, stating the null and alternative hypothesis. Show your work.
Students in the senior capstone course (N=36) at Central State University took the Political Science subtest developed by the National Board Testing Association. The test is a 75-item, multiple choice test covering all areas of political science. The national norms for the test show a mean of 50. The mean for the students in the capstone course was 55, with a standard deviation of 15. Did the students at CSU score significantly higher than the national average? State your null and alternative hypothesis Is this a one-or-two tailed hypothesis? Explain thoroughly. Calculate the appropriate statistical test. Can you reject the null hypothesis? Why or why not?
If the mean snowfall for Ottawa Ontario Canada is 98 inches per year and the standard deviation is 25 inches what percentage of the time does Ottawa receive less than 125 inches of snow?
7. Calculate -scores for the following raw scores taken from a population with a mean of 100 and standard deviation of 16: 112, 109, 56, 88, 135, 99 Answer: 2 = 0.75, 0.56, -2.75, -0.75, 2.19, -0.06 show work for these please
A researcher studied 5050 adults daily screen time. She had them record the amount of hours (rounded to the nearest hour) they spent looking, listening or reading at computer or cell phone daily. The frequency table below shows the results. Hours of Screen Time Frequency 7 5 8 6 9 4 10 5 11 8 12 10 13 9 14 3 The researcher found that the mean number of hours of the data set was 10.7210.72. She wants to also find range and standard deviation. Find the range of the data set.range = Find the standard deviation of the data setstandard deviation = Round your result to two decimal places.
b. If a sample of 64 households selected what is the probability that the sample mean number of TV sets is greater than 2? QUESTION 20 Scores on a statistics final in a large class were normally distributed with a mean of 75 and a standard deviation of 8. The instructor wants to give an A to the students whose scores were in the top 08% of the class. What is the minimum score needed to get an A? (Provide your answer with two decimal places) Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save Al-
Suppose that the average number of Facebook friends users have is normally distributed with a mean of 136 and a standard deviation of about 45. Assume forty-two individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible. Find the third quartile for the average number of Facebook friends
ABCDEF GHIJC Please answer the following questions, Write clearly as well and please as fast as possible. I will upvote. The College Board reports that the scores on the math SAT were normally distributed with a mean of 535 and a population standard deviation of 115. A random sample of 20 students at your high school had a mean of 560. a) State the null and alternative hypotheses to test whether the mean math SAT score at your school differs from the national value. b) Give the test statistic and p-value. c) Use the test statistic and p-value to make a decision about the null hypothesis (reject or fail to reject) at the 0.01 level of significance. Interpret the decision in the context of the problem. d) Describe what would be a Type I error here. e) Describe what would be a Type Il error here.

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