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 80 men, and 75% own cats. You sample 160 women, and 80% own cats. Find the test statistic, rounded to two decimal places

Q: You are testing the claim that the proportion of men who own cats is significantly different than…

A: From the given information, the sample of 60 men, 30% own cats. The sample of 140 women, 25% own…

Q: You want to determine if the graduation rate of different than the known national graduation rate.…

A: The researcher is interested to determine if the graduation rate of high-school students is…

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A: Given, Sample size = 696 Sample proportion = 0.30   The null and alternative hypothesis is:

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Q: The percentage of girls who like pink in a school is 57%. Which proportion separates the lowest 10%…

A: The percentage of girls who like pink in a school is 57%.p = proportion = 57/100 = 0.57 The sampling…

Q: In a sample of 61 households, one house is worth $2,500,000. Half of the rest are worth $280,000,…

A: A sample of 61 is taken.One house is worth $25,00,000.Half of the rest ( 30 ) are worth $2,80,000All…

Q: You have a sample of 10 (sorted) scores:   -15.5 -13.4 -12.7 -12.2 -11.1 -10.8 -9.1 -8.9 -7.9 -7.1…

A: -15.5-13.4-12.7-12.2-11.1-10.8-9.1-8.9-7.9-7.1Sample of size(n)=10

Q: You are testing the claim that the proportion of men who own cats is significantly different than…

A:

Q: f) Let z be the value of the test statistic. Give the correct decision rule at a = 0.05 level of…

A: sample size, n = 120 30 learners reported that they smoke Proportion of learners who reported that…

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A:

Q: how does the sample and population relate?

A: Sample and population both are different items, but both are related with each other. Population is…

Q: A survey (sample ) of 300.  112 favor Republican candidate.  Construct the 98%CL for the true…

A: Given that,   The sample proportion is,

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: It is given that For men, sample size n1 = 170, Sample proportion = 0.75 For women, sample size n2 =…

Q: You are testing the claim that the proportion of men who own cats is significantly different than…

A:

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Obtain the sample size of a no preliminary estimate for p. The formula of sample size is, Use EXCEL…

Q: American household spend on average about $45 in 2002 on Halloween merchandise such as costumes…

A: Given information- We have given that American household spends on average about $45 in 2002 on…

Q: what range of raw scores makes up the middle 40%

A: The middle 40% means, the scores lie between 30th and 70th percentile. From stand normal, z-score…

Q: The sample mean is a good estimate of the population mean because the lager sample compensate the…

A: It is an important part of statistics. It is widely used.

Q: A recent study indicated that 43% of the 100 women over age 55 in the study were widows. Round up…

A:

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A:

Q: You have a sample of 10 (sorted) scores: -15.5 -13.4 -12.7 -12.2 -12 -10 -9.1 -8.9 -7.9 -7.1…

A: From the provided information,Number of observations (n) = 10

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A:

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A: Formula for the sample size needed to estimate a population proportion is

Q: America OnLine published a survey question. Among the 2,300 Internet users who responded, 20%…

A: From the given information, America OnLine published a survey question. Among the 2,300 Internet…

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A: It is given that margin of error (E) is 0.04 and the confidence level is 0.95.

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A: The answer is attached below.

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A: Solution: Given information: σ= 41.5    Population standard deviation σx= 2.7   Standard deviation…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.