2) What percentage of Contra Costa County adults supports a ban on assault-styleweapons?Suppose that we survey a random sample of 100 adults living in Contra CostaCounty and find that 62% support a ban on assault-style weapons.According to a 2015 study by the Pew Research Center, 57% of U.S. adults favora ban on assault-style weapons. Assuming that the variability in random sampleswill be the same in Contra Costa County as in the U.S., find the 95% confidenceinterval to estimate the proportion of CCC adults that favor a ban on assault-styleweapons.the normal model are met using thea) Verify that the conditions for the use2015 study.b) Why do we check conditions for use of the normal model?c) Calculate the standard error based on the 2015 study. What does thisnumber tell us?d) Find the 95% confidence interval for Contra Costa County.e) Write a sentence to interpret the interval.f) Are we confident that the majority of Contra Costa County residents supporta ban on assault-style weapons? Why or why not?g) Are we confident that the percentage of Contra Costa County residents thatsupports a ban is greater than the percentage nationwide as reported by thePew Research Center? Why or why not?

Given Information: Sample size n=100 Sample proportion p^=0.62 Hypothesized value of population…

Answered: a) Verify that the conditions for 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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MUST READ PROMPT! Transcription factors are genes that code for proteins that regulate the transcription of multiple other genes. Studies show how transcription factor Zscan1O controls aspects of development in the mice. There was two lines of mice examined, both genetically identical except that one (mutant) carries a mutation in Zscan1O transcription factor The normal line was the control line. They measured the length of one tibia per mouse in mice randomly sampled from each line and recorded the genetic sex of each mouse. Keep in mind! Longer tibias have relation with longer legs. A) which group has the biggest median? B) what are the variables? C) are the sample sizes about the same across all the groups? And why? D) what info would be reported in the prompt above to calculate up to a 95% confidence interval for each group? E) which direction is the F.Mutant group skewed in?
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Assume the cholesterol levels of an adult can be described by a Normal model with a mean of 183 mg/dL and a standard deviation of 27. Complete parts a through e. b) What percent of adults do you expect to have cholesterol levels over 190 mg/dL? enter your response here % (Round to two decimal places as needed.) Part 3 c) What percent of adults do you expect to have cholesterol levels between 150 and 160 mg/dL? enter your response here % (Round to two decimal places as needed.) Part 4 d) Estimate the interquartile range of cholesterol levels. IQR=enter your response here mg/dL (Round to the nearest integer as needed.) Part 5 e) Above what value are the highest 15% of adults' cholesterol levels? enter your response here mg/dL (Round to the nearest integer as needed.)
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It seems that of engaged women buy a wedding dress at least one size smaller than their current size. Why? Cornell researchers reported an alarming tendency for women who are engaged to sometimes attempt to lose an unhealthy amount of weight prior to their wedding (Neighbors & Sobal, 2008). The researchers found that engaged women weighed, on average, 152.1 pounds. The average ideal wedding weight reported by 227 women was 136.0 pounds. The data below represent the fictional weights of eight women on the day they bought their wedding dress and on the day they got married. Did women lose weight for their wedding day? Dress purchase Wedding day 163 158 144 139 151 150 120 118 136 132 158 152 155 150 145 146 Conduct the six steps of hypothesis testing using a one-tailed test and an alpha level of 0.05. Report the test statistic in APA format. Calculate the confidence interval for the paired-samples t test that you conducted in part (a). Compare the…
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a) Verify that the conditions for the use of the normal model are met using the 2015 study. b) Why do we check conditions for use of the normal model? c) Calculate the standard error based on the 2015 study. What does this number tell us?