The Chi-square test statistic is = 18.75. What would I compare that to if I wanted to use that test statistic to make a decision on the hypothesis test? %3D

Q: This is rejecting Ho when it is true. If the alternative hypothesis says not equal to we know are…

A: We have to match the given definitions with the given terms.

Q: Can you give an example of how the importance of the goodness of fit test to the chi-square test?

A: Step 1: The goodness of fit test to the chi-square test is a statistical hypothesis, which helps to…

Q: SE 5: mpute for the sample size needed if the margin of error is 15, with sample standard iation of…

A: Case (5) We have given that  Sample standard deviation =43 Margin of error =E = 15 Sample standard…

Q: The _________ test is the most powerful test for a repeated measures design.

A: Repeated measures design is a design model in which each member of the group in an experiment or a…

Q: A manager wants to see if geographical region (Cape Town, Durban and Gauteng) is related with…

A: Given: Chi square test statistic = 0.412 Assumed significance level = 0.05

Q: Describe what is measured by the estimated standard error in the bottom of the independent-measures…

A: The estimated standard error indicates the expected amount of error between the sample statistic and…

Q: What is the mean squared error (MSE)?

A:

Q: The p-value for this test is approximately

A: Here Given for two tail test  Sample size=n=144 Sample mean=x¯=60.8 Standard deviation=s=3.6

Q: What information is provided by calculations of the “chi-square” test statistic?

A: The chi-square test statistics, it could be calculated:

Q: Proportion of Variance

A: pca is dimensionality reduction technique by performing pca we get which component explains the…

Q: of 5.7. What is the margin of error of the 95% confidence interval of the mean sodium content of the…

A: It is given that Sample size n = 9 Sample mean = 224 Sample SD = 5.7 The critical value of t at df =…

Q: Travelocity would like to test if the average roundtrip airfare between New York and London is less…

A:

Q: hat is the possible range of values for Pearson's coefficient of skewness?

A: Here  For Perason coefficient of Skewness

Q: Explain the differences between a One-Way and a Two-Way Chi-Square Test. Which of these do you think…

A: One Way Chi-Square Test is used to test the general goodness of fit of the data i.e., it checks if…

Q: Now that we've interpreted the p-value, let's focus on the chi-squared test statistic of 23.156.…

A: The observed frequency for diamonds with color D and clarity C1 is  O = 7 And the expected frequency…

Q: A 95% confidence interval for the mean was computed with a sample of size 90 to be (16,22). a. What…

A:

Q: Go through the steps of ANOVA hypothesis testing to see if you can conclude that there difference…

A: Excel Procedure: Enter the data for Autistic, Normal and Mentally in Excel sheet>Go to Data…

Q: Do the data support the hypothesis that height is hereditary? Explain. explanation with statistical…

A: Father (X) Son (Y) (x-xbar) (x-xbar)^2 (y-ybar) (y-ybar)^2 (x-xbar)*(y-ybar) 71 71 3.4 11.56 5.1…

Q: What does the one-sample chi-square test determine?

A: The Chi-square test used with one sample is described as a "goodness of fit" test

Q: At the 5% significance level, is there a significant overall difference between the proportion who…

A:

Q: The mean age of a group of 15 out of all MPC students studying at the Math Learning Center on a…

A: We have to find correct option.

Q: A police officer waits on a road to catch speeding cars. In a one hour sample, the officer find that…

A:

Q: You measure 20 dogs' weights, and find they have a mean weight of 44 ounces. Assume the population…

A: Since we know population standard deviation, use z-distribution to find z-critical value. Find…

Q: The value of the test statistic is (Round to two decimal places as needed.)

A: The test statistic formula is, t=x¯-μsn In the formula, x¯ is sample mean, μ is population mean, s…

Q: Human body temperatures have a mean of 98.60° F and a standarddeviation of 0.62° F. If Sally’s body…

A: Let X be the human body temperatures that follows normal distribution with mean of 98.60-degree F…

Q: Which student has larger Inter Quartile Range (IQR)?

A: IQR= Q3-Q1

Q: The Chi-square test statistic (rounded off to two decimals) is:

A: Test is that whether the daily breakdown of commuting pattern of workers into the CBS have changed…

Q: Your state is considering raising the legal age for consumption of alcohol beverages. How large a…

A: From the provided information, Margin of error (E) = 0.01 Confidence level = 99%

Q: How do you tell if a ANOVA is significant given the F value, p value, and eta squared? What does the…

A: In ANOVA, the null hypothesis is that there is no difference between group methods. If any group…

Q: Manually find the first quartile as explained in the lectures for the following values: 3, 6, 18, 6,…

A: Given that, 3, 6, 18, 6, 10, 4, 7

Q: What are the Four Steps to use when working with the t-test ?

A: The Four Steps to use when working with the t-test with p-value approach is given below: Step 1:…

Q: Go through the steps of ANOVA hypothesis testing to see if you can conclude that there is a…

A: In order to determine whether there is significant difference in between the mean concentration of…

Q: Calculate the probable outlier data points.

A: Lower quartile = 13 Upper quartile = 24.5

Q: What is the chi-square test-statistic for this datas (2 decimals)

A:

Q: In a 70 item test, Chloe got a score of 50 which is the third quartile. What does it mean?

A: We know that their are 75% data points are lies below the third quartile.

Q: What is the chi-squared value for the test?

A: Our aim is to write the chi square test value from the given output.

Q: The p-value for this test is

A: Given : n=26 , s=0.06 , σ2=0.003  Our aim is to find the p-value.

Q: When to use a chi- square test?

A: The chi-square test can be used to test the in the following scenarios: To test the Goodness of fit…

Q: When trying to determine how many samples are needed to perform an experiment, the desired accuracy…

A: It is given that margin of error (E) is 0.05 and the confidence level is 0.95.

Q: When conducting a hypothesis test for the population mean, you will not know the population standard…

A: When we are conducting the hypothesis test for the population mean µ and we know the population…

Q: Based on the data and results of test for normality in the table, complete the parts of hypothesis…

A:

Q: Why is the Chi- square test applicable to the given scenario?

A: For the given sample data, we will conduct a chi-square test for independence.

Q: The interquartile range is found by taking the difference between the 1st and 3rd quartiles and…

A: The difference between the upper and lower quartile is known as the interquartile range.

Q: What is a post hoc test and why don’t you need it if your ANOVA is not significant

A: In ANOVA we test that whether the groups are different. Note : Since you have asked multiple…

Q: A population of scores has a mean of µ=89, a median of 87 and a mode of 85. What is the most likely…

A: Given data, Mean=89 Median=87 Mode=85 What is the shape of the distribution?

Q: Consider a two-tailed test with a level of confidence of 80.30%. What is the z-value?

A: It is given that the level of confidence is 80.30%. Thus,

Q: You measure 33 backpacks' weights, and find they have a mean weight of 50 ounces. Assume the sample…

A: The sample mean = 50 ounces. Sample standard deviation, s is 6.5 ounces. The sample size, n is 33.

Q: what is the p value? is the p-value low? can we conclude?

A: Answer 1: The intersection P-value is 0.11225061. Thus, the intersection P-value is 0.11225061.…

Q: When I’m trying to infer the population mean from a small sample, why do I have to rely on the…

A: Assumptions to use standard normal distribution to estimate population mean:The required conditions…