The image contains a question regarding a hypothesis test from a study on dreaming in black and white versus color. The study involves two groups: people over the age of 55 and those under 25. Specifically, it examines the following:### Study Background- **Participants**: - Over age 55: 298 people, of which 69 dream in black and white. - Under age 25: 310 people, of which 12 dream in black and white.- **Objective**: Test the claim that the proportion of people over 55 who dream in black and white is greater than that of those under 25.- **Significance Level**: 0.01### Hypothesis TestThe task is to test the claim using a hypothesis test with the null and alternative hypotheses outlined below:### Hypotheses- **Null Hypothesis (H₀)**: \( p_1 = p_2 \) (Proportions of people dreaming in black and white are equal for both age groups)- **Alternative Hypothesis (H₁)**: \( p_1 > p_2 \) (A greater proportion of people over 55 dream in black and white compared to those under 25)A correct answer is highlighted: \( H₀: p_1 = p_2 \) and \( H₁: p_1 > p_2 \).### Task- Identify the test statistic needed for this hypothesis test.### Additional Features- There is an option to "Clear all" inputs or "Check answer" on the interface.- Functionality to view similar examples and get more help is available.This setup is typical for evaluating differences in proportions between two independent samples using hypothesis testing.

Given data for age of 55: n1 = 298x1 = 69 Given data for age of 25: n2 = 310x2 = 15 The level of…

Answered: A study was conducted to determine 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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The table shows data about student involvement in extracurricular activities at a local high school. Extracurricular Activities Involved in Not Involved in Activities Activities Totals Male 112 145 257 Female 139 120 259 Totals 251 265 516 P(femalel involved in activities)? 265 516 139 251 251 516 139 516
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Can someone please answer d.) e.) and f.)
"Bluth's Original Frozen Banana Stand" is a frozen banana stand founded in 1953 by George Bluth. They offer multiple types of chocolate that you can have your frozen banana dipped in, and they also offer multiple different toppings for your frozen banana. One day when stand employee Michael was working, he wondered whether or not there was a relationship between what customers had their bananas dipped in (milk chocolate, white chocolate, or dark chocolate) and their choice of topping (plain, walnuts, or sprinkles). He recorded the choices of each for 90 different customers, and the resulting data can be seen in the table below. Which cell has the highest Chi Square contribution? Chocolate milk milk milk white white white dark dark dark walnuts, milk Osprinkles, white walnuts, dark O plain, dark Topping plain walnuts sprinkles plain walnuts sprinkles plain walnuts sprinkles Freq. 15 4 11 7 13 10 14 10
10. Determine if the number of absences incurred by a student is related to his or her final test score in a Statistics class. The data obtained in a study is from seven randomly selected students. No. of Absences, x 6. 15 9. 12 8. Final grade, y 82 86 43 74 58 90 78 41 16.4
NEED ASAP THANK U
The table to the right gives the cost of living index (COLI) for six East Coast counties and six Midwest counties (using an index where 100 represents the average cost of living for all A participating cities with a population of more than 1.5 million). Answer parts (a) through (e) below. B a. Find the mean, median, and range for each of the two data sets. The mean for the East Coast Counties is (Type an integer or decimal rounded to two decimal places as needed.) EUCEY с D F East Coast Counties 104.9 128.7 314.2 134.1 123.5 141.1 DYWXYN Midwest Counties 96.2 92.7 94.4 87.3 95.8 228.3
490 undergraduate students at a state university in the southwestern region of the United States were surveyed. Each student in the sample was classified according to class standing (freshman, sophomore, junior, or senior) and body are category (body piercings only, tattoos only, both tattoos and body piercings, no body art). Use the data in the accompanying table to determine if there is an association between class standing and body art category. Assume that it is reasonable to regard the sample as representative of the students at this university. Use α = 0.01. 1. What type of question is this-estimation or hypothesis?2. What type of study is this sample data or experiment data?3. What type of data is this? Univariate or bivariate? Categorical or Numerical?4. How many samples or treatments?
An appropriate measure of association for wondering whether gender (male =1, female =2) has an effect on happiness( not too happy =1, pretty happy =2, and very happy =3) would be?

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