zy Section 7.1 - MAT 240: Applied S xO https://learn.zybooks.com/zybook/MAT-240-14373-OL-TRAD-UG.22EW4/chapter/7/section/1?content_resource id=5. AMy library > MAT 240: Applied Statistics hore > 7.1: Hypothesis test for a population proportionE zyBooks catalogHelp/FAQFeedback?CHALLENGE7.1.3 Hypothesis test for a population proportion.ACTIVITY387674.1891676 qxdagy?Jump to level1A software company is interested in improving customer satisfaction rate from the 73% currently claimed.The company sponsored a survey of 240 customers and found that 188 customers were satisfied.What is the test statistic 2?Ex: 1.23 :1CheckNextFeedback?CHALLENGE7.1.4: Excel: Hypothesis test for a population proportion.ACTIVITYto search72°F A a OPriscDeleteInsertF7F9F10F12%23&Backspace4.578.9.0RTYPICH.JKD-D-D-+ ||

Given,n=240x=188sample proportion(p^)=xnsample proportion(p^)=188240=0.7833population…

Answered: Jump to level 1 A software company is…

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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What is the t statistic for the top 3% for a sample size of 19.
Twenty years ago, 56% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 247 of 700 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a = 0.01 level of significance. 5% of the population size, and the sample can be reasonably assumed to be random, the requirements for testing the hypothesis Because npo (1-Po) = 172.5 > 10, the sample size is less than are satisfied. (Round to one decimal place as needed.) What are the null and alternative hypotheses? 0.56 versus H,: p # 0.56 Ho: (Type integers or decimals. Do not round.) %D Find the test statistic. Zo = (Round to two decimal places as needed.) %D
The table below shows the number of employees within a small construction company classified according to their years of experience. Find the standard score for an employee with 20 years of experience? :Choose the correct answer Years of experience 5-10 11-16 17-22 23-28 Employees 8 10 7 4 0.546 0.111 O 0.837 O 0.987 O 0.678 O
cant figure out where im going wrong .
It is thought that 12% of all students taking a particular course received a grade of A. In a sample of 155 students, it is found that 21 made an A. What is the test statistic for testing the true proportion is 12%?
dults aged 18 years old and older were randomly selected for a survey on obesity. Adults are considered obese if their body mass index (BMI) is at least 30. The researchers wanted to determine if the proportion of southern women who are obese is less than the proportion of southern men who are obese. The results are shown in the table below. Test at the 1% level of significance. Number who are obese Sample size Men 42,773 155,525 Women 67,176 248,775 a.State the distribution to use for the test. (Round your answers to five decimal places. b. What is the test statistic c. Conduct a Hypothesis Test
Winston has just gone grocery shopping. The mean cost for each item in his bag was $3.48. He bought a total of 9 items, and the prices of 8 of those items are listed below: $2.75,$4.06,$3.16,$3.92,$4.29,$2.77,$3.01,$4.57 Determine the price of the 9th item in his bag.
In each part, give the value of the standardized statistic (z-score) for the sample mean. 100, σ = 8, n = 4 (a) x = 88, μ = Z = (b) x = 88, μ = 100, σ = 8, n = 64 Z = (c) x = 10.63, μ = 10.0, σ = 7, n = 10,000 z =

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Jump to level 1 A software company is interested in improving customer satisfaction rate from the 73% currently claimed. The company sponsored a survey of 240 customers and found that 188 customers were satisfied. What is the test statistic 2? Ex: 1.23: