Scenario: Terry Teacher suspects that kindergarten class sizes in Alameda county are larger than average. According to the California Department of Education, the average kindergarten class size in California is 21.9. For a random sample of 36 Alameda County kindergarten classes, the average class size was 23 with a standard deviation of two. Run a test to assess Terry Teacher's hypothesis at the a=.05 level. Question: Given the p-value you calculated, which of the following is a correct conclusion for this test? (select all that apply) There is support for the alternative hypothesis Because p < , we can reject the null hypothesis Because p > we fail to reject the null hypothesis There is no support for the alternative hypothesis

Q: b. The test statistic (t V = (please show your answer to 3 decimal places.) c. The p-value (Please…

A: we know that   sample means are : \bar X_1 = 6.4Xˉ1​=6.4\bar X_2 = 4.8Xˉ2​=4.8 Also, the 0sample…

Q: Q1: Tossing two dice, Let X be the RV of the sum of them. Find Sample space, Range of X. Dlet D 4E…

A: From the given information, a dice rolled twice. The total sample space is, The sample space has 36…

Q: The sample should include (Type whole numbers.) men and women.

A: Here given MOE = 0.03 confidence level = 99%

Q: A survey was conducted to find out the number of people who liked orange juice out of the entire…

A: 1.  469 people liked both orange and apple juice: unbiased (just a piece of information, no…

Q: A survey conducted on a group of patients showed that these patients either have a heart disease…

A: Given: 60% are men Among the men, 20% have heart disease only and 50% have lung disease only Among…

Q: Direction: Solve the problem by using Pearson r and follow the steps shown in Day 3 example. NOTE:…

A: Given data: X :- 5, 7, 9, 10, 11, 12, 15, 17, 20, 25 Y:-  6, 15, 16, 12, 21, 22, 8, 27, 5, 30 The…

Q: Run the code below: PROC MEANS DATA = sashelp.bweight MEAN MEDIAN Q1 Q3; RUN;

A: The dataset Bweight contains the columns Obs Weight Black Married Boy MomAge MomSmoke…

Q: Do students perform worse when they take an exam alone than when they take an exam in a classroom…

A:

Q: 7.35. A company has 1250 employees, and you want to take a simple random sample of n = 60 employees.…

A: A random number table consists of the digits from 0,1,2,3,to 6,7,8,9. In the table, the probability…

Q: school psychologist wanted to know if the class size changed from small (n=10), medium (n=25) to…

A: The Chi-Square test of independence is known as a method that is used to define whether there is a…

Q: If you get a p-value of 1.2 what does that mean? O There is bias in the sample. O The sample mean is…

A: P-value = 1.2

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A:

Q: A school psychologist wanted to know if the class size changed from small (n=10), medium (n=25) to…

A: The Chi-Square test of independence is a method that is used to define whether there is a…

Q: A company institutes an exercise break for workers to see if it will improve job satisfaction.…

A: here use basic of hypothesis test selection

Q: A company manufactures tennis balls. When its tennis balls are dropped onto a concrete surface from…

A: Given that n=25

Q: Now suppose Albert makes n = 30 rolls, and a 2 comes up 6 times out of the 30 rolls. Determine the…

A: Die is rolled 30 times the probability of coming 2 is p0=1/6  2 comes up 6 times x=6 then sample…

Q: The accompanying table describes results from groups of 10 births from 10 different sets of parents.…

A: The probability distribution is,The mean of the random variable X is,

Q: Consider the sample space for a single card drawn from a standard deck. Find the probablity that the…

A: Probability: Probability is a chance factor that occurs at every outcome of a random experiment.…

Q: The sample should include men and women.

A: Margin or error = 0.02 z-critical value at 0.05 = 1.96

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A:

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A:

Q: Do men take less time than women to get out of bed in the morning? The 57 men observed averaged 4.7…

A:

Q: d your final answer to four decimal places) Twenty-five percent of the customers of a grocery store…

A: Given: Sample size, n = 4 p = 20% = 20100=0.20 X~B (n=4, p=0.20) Let X here be the number of…

Q: JA company conducts a survey to determine the gender of car users across the different car types.…

A: Given that    Car Truck  SUV VAN Male 85 96 45 6 Female 110 75 60 3 Confidence level=90%…

Q: b. The test statistic (t (please show your answer to 3 decimal places.) c. The p-value = (Please…

A: Given:   Right Left 41 36 44 41 43 42 44 44 45 44 41 40 41 36 50 45

Q: 2 a/2 n= 2E?

A: Given, Margin of error (E) = 0.02 Confidence interval = 99% = 0.99

Q: At a trade show, you interview a random sample of 50 attendees. The results of the survey show that…

A: Givensample size(n)=50p^=0.59α=0.05

Q: Varsity Team JV Team The median height for the Varsity players is the same as the for JV players?…

A: Boxplot:   The box plot represents the statistical data based on the five number summary, minimum,…

Q: f the treatment actually does work in the population, but based on looking at a sample, you conclude…

A: The type I error is defined as rejecting the null hypothesis when it is true. The type II error is…

Q: X-X bar this is the difference between what happened and what you expected to happen. This…

A: X-X bar this is the difference between what happened and what you expected to happen. This…

Q: Is there a significant relationship between study habits and academic performance. Use excel and…

A: Solution Given solution is asked to solve in Excel ,so we will run regression analysis in Excel.

Q: Consider the following statement. The proportion of all students enrolled at a particular university…

A: Given: The data shows that the proportion of all students that were enrolled at a particular…

Q: In hypothesis testing, what is a p value and how do I find it?

A: Concept of p-value:The p-value in hypothesis testing is the probability of obtaining a test…

Q: Before 78 79 65 78 68 After 85 83 62 85 79

A:

Q: Directions: Fill in the blanks to complete the following statements. Choose your answer from the…

A: 1) Mean is obtained by getting the sum of all scores divided by the total frequency. 2) Whenever…

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A: Given data in the problem is, wehave to find sample size of men and womenParameters are α = 90…

Q: A Where do you get most of your information on video games and movies? Friends Game store internet…

A: What is Survey? Surveys is a method  to collect information about people’s perspective, opinion,…

Q: 2: The median age of the children is: 29 30.5 28.5 28

A: Given ages are, 36,42,18,32,22,22,25,29,30,31,19,24,35,29,26,36,24,28   Sort the data in Ascending…

Q: Compute the test statistic and p-value. z-value (to 2 decimals) p-value (to 4 decimals)

A: It is given that Sample size n = 70 Sample proportion = 0.34 To find : z-value and p-value.