A survey of 100 senior citizens was undertaken and it was found that 9 of them had the flu vaccine thisyear. Do these data suggest that the proportion of senior citizens who get the flu vaccine is significantlyless than 12 % ? Test at a = 0.10. Round your answers to three decimal places, and round any interimcalculations to four decimal places.What is the test statistic?

GIVEN DATA, claim:p<0.12α=0.10p^=xn =9100 =0.09test statistics :z:=p^-pp*(1-p)n=0.09-0.120.09*(1-0.09)100=-1.04828=-1.048

Answered: A survey of 100 senior citizens was…

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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You are testing the claim that the proportion of men who own cats is smaller than the proportion of women who own cats.You sample 190 men, and 71 own cats.You sample 130 women, and 114 own cats.Find the test statistic, rounded to two decimal places
Calculate the test statistic for the given scenario. Round your answer to 3 decimal places P-p V pg/n A company claims the 85% of their employees are happy with their work environment. A survey of 50 employees is taken in which 45 say they are happy with their work environment.
ABC company has recently experienced a sharp decline in its stock price. Its current (time 0) stock price is $42.65, and this morning, it paid $5.00 per share. Given that the stock price four years ago was $82.88, complete the following time series of data by determining the missing values. t= -3, Pt =$83.43, Divt = $16.03, Rt = (1)t= -2, Pt =$85.20, Divt =(2), Rt = 22.8482%t= -1, Pt =(3), Divt =$17.50, Rt = 20.6572%t= 0, Pt =$42.65, Divt =$5.00, Rt =(4)
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.85. You would like to be 97% confident that your esimate is within 4% of the true population proportion. How large of a sample size is required?
You are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who own cats. You sample 160 men, and 15% own cats. You sample 120 women, and 65% own cats. Find the test statistic, rounded to two decimal places.
You are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who own cats.You sample 180 men, and 85% own cats.You sample 100 women, and 45% own cats.Find the test statistic, rounded to two decimal places.
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.23. You would like to be 96% confident that your esimate is within 5% of the true population proportion. How large of a sample size is required?
You read a newspaper article that says that 74% of households in your town participate in a recycling program. To test that statement at the 10% significance level, you randomly select 54 households in town and you find that 35 of them participate in the recycling program. Ho: P=0.74 Ha:P=/ 0.74 Find the P-value. Round your answer to 3 decimal places.
A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 279 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Vaccinated Not Vaccinated Total Diseased Not Diseased Total 54 87 71 192 125 279 33 121 154 Step 4 of 8: Find the value of the test statistic. Round your answer to three decimal places. Copy Data
Suppose you are told your BMI is 32, the 70th percentile for your age and sex. Please interpret this percentile age: 28 Female
You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable estimation for the population proportion. You would like to be 99.9% confident that you estimate is within 0.1% of the true population proportion. How large of a sample size is required?
You want to test whether the true proportion teenagers who can swim is below 1/4. In a random sample of 70 teenagers, 40 can swim. what is the test statistic for the test?

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