Suppose in the general population the mean score on the Kids" Stress Test (KST) is u = 18.20(higher scores indicate greater stress.) Gemma studied z sample of 40 kids who recently lived in a refugeecamp to see if their scores were significantly higher than the general mean. For this sample, M 2140 with s= 4 20. Conduct the appropriate statistical test on the data Follow the 7 hypothesis testing steps you havebeen taughtRat

The random variable score on the Kid’s Stress Test. We have to test whether the population mean…

Answered: Suppose in the general population the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Conduct a full hypothesis test to determine if x and y are related. Use α = 0.05. Remember to use all the steps of hypothesis testing. Please see attached for data table
The least-squares regression equation is y=761.7x+13,208 where y is the median income and x is the percentage of 25 years and older with at least a bachelor's degree in the region. The scatter diagram indicates a linear relation between the two variables with a correlation coefficient of 0.7483. Predict the median income of a region in which 20% of adults 25 years and older have at least a bachelor's degree.
Mt. Dew is thinking about coming out with a new flavor. They are using a sample of 40 people who are tsting the new falvor. The people in the study were then given a questionnaire which evaluated how enjoyable to flavor was. The competing flavor has been studies extensively an population average value of 10.8. Write an appropiate null and alternative hypothesis ir order to test if there is a significant difference between the two drinks The ratings for the new Mt. Dew has an average of 14.4 and a sample standard deviation of 3.50. Calculate the test statistic for this hypothesis test. Calculate the p-value for this test statistic.
Researchers conducted a study to determine the effects of different types of alcohol on the peak alcohol concentration. In one part of the study, the researchers gave 15 randomly select males a controlled volume of vodka and monitored the subjects' alcohol concentration following the period of consumption. The legal limit for driving is 80 mg/dL (milligrams per deciliter of blood). A hypothesis test was conducted to see if the mean peak alcohol concentration from drinking vodka was different from the legal driving limit. This was reflected in the null and alternative hypotheses ?0:??1:?=80 mg/dL≠80 mg/dL The researchers required their results to be statistically significant at a level of ?=0.10. The mean peak alcohol concentration of the participants after drinking a controlled volume of vodka was 77.4 mg/dL with a standard deviation of 17.25 mg/dL. Determine the confidence interval that corresponds to the ?‑test. Give the lower and upper bounds precise to two decimal places
pnkch/OneDrive/Desktop/SCHOOL/SPRING%202023/MATH-110-0377%20GONZALINAJEC/LAB%20... Q Hulu Login | Hulu Citizenship and Im... IRS Log In HBO Max T Read aloud 3 Q Search ● ● Lab 4(b)-Probability Part 1: Candy contingency table Objective: In this lab, you will use M&M candies to create a contingency table and explore the concepts of probability and independence. ● . Materials: ● Three different types of M&M bags. One must be plain. The other two you may select. M&M types are peanut, almond etc. Purchase M&M types which have an obviously different shape to ensure you are able to sort them by type after they have been mixed. The bags you purchase should, preferably, be a sharing size to ensure you have a sufficient number of M&M's o O O - Two bowls or container to hold the candies. A large serving spoon Six small cups to sort the candy M&M Color O or 6 paper plates to sort the candy O or 6 napkins to sort the candy The table below to record your data Blue Brown Green Orange + Red Yellow BBC…
The critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample data is z = -1.90, what is the correct statistical decision?
please answer questions B,C,F
31
A paint company has large outlet stores in two cities. Ten samples of the weekly sales (in tons) for the two cities are as follows. City A: n = 10, X10 = 148.5, S1 = = 4.3. City B: n = 10, Y 10 = 144.2, S2 = 3.8. At a = 0.05 level of significance, test if the weekly sales are different. The following ¨answers" have been proposed. (a) The null hypothesis is that the weekly sales are the same and the alternative is that the they are not the same. By using an F test, we reject the null hypothesis. (b) The null hypothesis is that the weekly sales are the same and the alternative is that the they are not the same. By using an F test, we do not reject the null hypothesis. (c) The null hypothesis is that the weekly sales are the same and the alternative is that the they are not the same. By using a i test, we do not reject the null hypothesis. (d) The null hypothesis is that the weekly sales are the same and the alternative is that the they are not the same. By using a i test, we reject the…
This research was conducted with Korean adolescents in the Los Angeles area. Would you be willing to generalize the results of this study to Korean adolescents who live in other regions of the country? Why or why not.
Part 2 Q2: Put (True) or (False). Write True or False for six questions from the following question. Write the reasons for correct answers, and correct any statement/answer if it is false (12 Marks). 1. As the sample size increases, the variance of the estimator decreases.
Researchers were interested in assessing whether stress levels are different at the beginning of the semester compared to finals week. To test this, stress was measured in 5 students at the start of the semester and then again at the end of the semester during finals week. Participant Stress 1 Stress 2 Difference Score (Di) (Di - Mdiff)2 1 22 22 0 2 32 34 -2 3 24 25 -1 4 28 30 -2 5 26 29 -3 What is the observed test statistic (i.e., tobs)? Round to 2 decimal places.

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