ofThis frequency table depicts the average hours spent on social media use for students in PSY201 class.HoursFrequency43.532.521.510.5010553716053How many students spent at least 3 hours on social media in PSY201?

Answered: This frequency table depicts 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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One of the basketball coaches at Cypress College wanted to see if Cypress College's Strength & Exercise class was increasing the weight that a player could bench press. The basketball coach randomly selected some of his players and determined how much they could bench press before taking the class. Then after completing the class, he again determined the weight that they could now bench press. The data for these players is given in the table below. Test whether the Strength and Exercise class is increasing the amount of weight that the players can bench press at the a=0.05 level of significance. Player Player 1 Player 2 Player 3 Player 4 Pounds Lifted Before 205 241 338 368 [ Select] ANOVA 2-SampFTest 252 330 360 2-SampTTest X^2-Test 2-PropZTest T-Test [ Select ] P-Value [ Select] Conclusion
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Raquel runs a BBQ restaurant. She would like to know if the mean number of children that choose beef ribs daily is different from the average number of children that choose pork ribs daily in anticipation of creating a new children's menu. She asks her servers to make a special note every time they take an order from a child and record it in the log book. After 15 days, she records that an average of 39 children every day order beef ribs and 43 order pork ribs. The standard deviations for those 15 days are 3.1 for beef ribs and 2.9 for pork ribs, respectively. (a) Create a 95% confidence interval for the true difference in mean number of children that order beef and pork ribs recorded as (beef - pork). (b) Using the t-table, determine the test statistic and p-value for testing if there is a difference in the mean number of children that order beef and pork ribs daily. You do not need to perform a complete test.
as survey of 4050 US adults find a 15% use ridesharing applications identify the population in the sample describe the data describe the sample data set
No written by hand solution The Coca-Cola Company reported that the mean per capita annual sales of its beverages in the United States were 459 eight-ounce servings (Coca-Cola Company website, February 25, 2017). Suppose you are curious whether the consumption of CocaCola beverages is higher in Atlanta, Georgia, the location of Coca-Cola’s corporate headquarters. A sample of 61 individuals from the Atlanta area showed a sample mean annual consumption of 479.5 eight-ounce servings with a standard deviation of s = 90 ounces. Using α = .01, does the sample support the conclusion that means annual consumption of Coca-Cola beverage products is higher in Atlanta? Use both the critical value and p-value approach to test the hypothesis that H0: µ >459 in Atlanta vs. the 1-sided alternative. 7. From data from the past 10 years, we know that South Mall Theater averaged 600 patrons per day, with variance equal to 1000. This year, based on data from 25 random days, we found that the…
Several years ago, two companies merged. One of the concerns after the merger was the increasing burden of retirement expenditures. An effort was made to encourage employees to participate in the 401(k) accounts. Nationwide, 63% of eligible workers participated in these accounts. The accompanying data table contains responses of 30 employees of the company when asked if they were currently participating in a 401(k) account. Complete parts a through d. Click the icon to view the data table. a. Determine the sample proportion of company workers who participate in 401(k) accounts. The sample proportion is. (Round to three decimal places as needed.) b. Determine the sampling error if in reality the company workers have the same proportion of participants in 401(k) accounts as does the rest of the nation. The error is (Round to three decimal places as needed.) c. Determine the probability that a sample proportion at least as large as that obtained in the sample would be obtained if the…
1
Proc Freq of the SAS System produced a data of 4 different zip codes (zip codes 1-4) that has most homes for sale. Zip code 1 has 6, zip code 2 has 13, zip code 3 has 16, and zip code 4 has 34. Complete the relative frequency distribution. Zip Relative Frequency 1 % 2 % 3 % 4 %
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You want to determine how many loaves of Bread are sold per day at Schat’s Bakery. You stand outside for ten different randomly selected days, count the number of loaves, and then average them. You come up with 421 loaves per day. In reality, Schat’s keeps records of how many loaves they sell per day, and in they averaged 395 loaves per day. Describe what the population is in the above example?

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This frequency table depicts the average hours spent on social media use for students in PSY201 class. Hours Frequency 4 3.5 3 2.5 2 1.5 1 0.5 0 10 5 5 3 7 16 05 3 How many students spent at least 3 hours on social media in PSY201?