Test the claim that the proportion of people who own cats is larger than 40% at the 0.1 significance level.   Based on a sample of 500 people, 46% owned cats The test statistic is:  (to 2 decimals)

Q: You are a research assistant at a zoo.  The question of your study is "Has the proportion of baby…

A: Solution

Q: Test the claim that the proportion of people who own cats is significantly different than 80% at the…

A: In order to determine whether the proportion of people who owns cat is significantly different from…

Q: Test the claim that the proportion of men who own cats is smaller than the proportion of women who…

A:

Q: ificance level. Based on a sample of 300 people, 41% owned cats Hint: To get the number of…

A: The number of success will be: 0.41=x300x=0.41· 300x=123 The following null and alternative…

Q: Test the claim that the proportion of men who own cats is smaller than 30% at the .01 significance…

A:

Q: A random sample of 529 college freshman found that 341 bought most of their textbooks from the…

A: Denote p1, p2 as the true proportions of all freshman and seniors that purchase most of their…

Q: Test the claim that the mean GPA of night students is larger than 2.3 at the 0.005 significance…

A: Claim : The mean GPA of night students is larger than 2.3, i.e. μ > 2.3  Hypothesis : H0 : μ =2.3…

Q: You are a research assistant at a zoo.  The question of your study is "Has the proportion of baby…

A: The obtained z-score is 1.89.

Q: Test the claim that the proportion of men who own cats is larger than 80% at the .10 significance…

A: Given data   sample size, n = 75 population proportion,p= 0.8 Significance level,…

Q: Test the following claims using the P-value method of hypothesis testing.   An article in a journal…

A: Solution:It is given that the population proportion; p is =0.34. In the sample of 234 fathers 96did…

Q: Test the claim that the proportion of men who own cats is smaller than the proportion of women who…

A: State the hypotheses.   Let p1 denotes the proportion of men who own cats Let p2 denotes the…

Q: Test the claim that the proportion of men who own cats is smaller than the proportion of women who…

A:

Q: Test the claim that the proportion of men who own cats is significantly different than 40% at the…

A: Given data,n=500p-hat =44% =0.44α=0.02Population proportion P=40%=0.40Test statistic is ?

Q: Test the claim that the proportion of people who own cats is larger than 50% at the 0.05…

A: Solution: From the given information, p-hat=0.56 and n=600.

Q: Test the claim that the proportion of men who own cats is less than 40% at the 0.05 significance…

A: Given that  Claim : The proportion of men who own cats is less than 40% Level of significance (α) =…

Q: You are a research assistant at a zoo. The question of your study is "Has the proportion of baby…

A: You are a research assistant at a zoo.  The question of your study is "Has the proportion of…

Q: Test the claim that the proportion of people who own cats is significantly different than 90% at the…

A:

Q: A random sample of 722 college freshman found that 231 bought most of their textbooks from the…

A: Let p1 be the population proportion of all freshman that purchase most of their textbooks from the…

Q: Renee is studying the effect of positive reinforcement for her psychology class. She gets 8 pigeons,…

A: Let μd is defined as the mean difference between the reinforcement before and after. The claim of…

Q: an independent sample sample t-test, the researcher rejects H0 at 5% level of significance and fails…

A: Given that  Independent sample t-test.  Reject H0 at 5% level of significance and fail to reject H0…

Q: You are conducting a hypothesis test where alternative (research) hypothesis is that mu is greater…

A: The test statistic is independent of significance level.

Q: Test the claim that the proportion of men who own cats is smaller than the proportion of women who…

A: From the provided information,

Q: Test the claim that the proportion of men who own dogs is significantly different than the…

A: The null and alternative hypothesis be  two-tailed   test statistic =  2.2p-value =  0.0285

Q: Test the claim that the proportion of people who own cats is smaller than 60% at the 0.025…

A:

Q: Test the claim that the proportion of men who own cats is smaller than 48% at the .10 significance…

A: Solution: The claim is that the proportion of men who own cats is smaller than 48%.

Q: Test the claim that the proportion of people who own cats is smaller than 40% at the 0.01…

A:

Q: 30. The Scholastic Assessment Test (SAT) on reading is a standardized test, and the scores are…

A: t-test: If the given sample size is less than or equal to 30 or sample standard deviation is given.…

Q: Test the claim that the mean GPA of night students is larger than the mean GPA of day students at…

A: The answer is attached below,

Q: A random sample of 222 college freshman found that 123 bought most of their textbooks from the…

A: Claim: The proportion of all freshmen that purchase most of their textbooks from the college…

Q: Test the claim that the proportion of people who own cats is significantly different than 50% at the…

A:

Q: 32. HDTV Penetration In a survey of 1500 households, it is found that 47% of them have a…

A: In a survey of 1500 households, it is found that 47% of them have a high definition television. Let…

Q: You are a research assistant at a zoo.  The question of your study is "Has the proportion of baby…

A: Given: The Z - score is equal to 0.788 α = 0.05   The objective is to validate the asserted claim…

Q: Births A random sample of 860 births in New York State included 426 boys. Use a 0.05 significance…

A: The hypotheses are given below:Null hypothesis:H0: p=0.512Alternative hypothesis:Ha: p≠0.512Step by…

Q: Test the claim that the proportion of people who own cats is larger than 50% at the 0.05…

A: Given,   Sample size = 200 Sample proportion = 0.58

Q: PCB contamination of a river by a manufacturer is being measured by the amount of the pollutant…

A: Let μ be the population mean. The claim is that the fish contain only 5 parts per million. The…

Q: Test the claim that the proportion of people who own cats is larger than 20% at the 0.05…

A: Given n=700α=0.05

Q: Test the claim that the proportion of people who own cats is smaller than 80% at the 0.025…

A: Solution : Given that :- n = 500 p = 0.80 p̂ = 0.75 α = 0.025

Q: 1. The Civil War. A national survey conducted in 2011 among a simple random sample of 1,507 adults…

A:

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

A: Test statistic: Given information, n1=40p^1=0.40n2=60p^2=0.45 Consider, p^=n1*p^1+n2*p^2n1+n2…

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

A: Given: For men: n1 = 40 p1 = 0.45 For women: n2 = 40 p2 = 0.65 Formula Used: Test-statistic Z =…

Q: Test the claim that the proportion of people who own cats is significantly different than 90% at the…

A:

Q: Using the test results provided, test the hypothesis that soil treatment affects the number of…

A: The level of significance is 0.05.

Q: Test the claim that the mean GPA of Orange Coast students is smaller than the mean GPA of Coastline…

A:

Q: Final Conclusions. In Exercises 25–28, use a significance level of α = 0.05 and use the given…

A: a. Conclusion about Null hypothesis:Here, H0: p = 0.90 and H1: p < 0.90.Decision rule:If P-value…

Q: Test the claim that the proportion of people who own cats is significantly different than 80% at the…

A:

Q: Test the claim that the proportion of people who own cats is significantly different than 80% at the…

A:

Q: Test the claim that the proportion of people who own cats is significantly different than 80% at the…

A:

Q: Test the claim that the proportion of people who own cats is significantly different than 40% at the…

A: From the provided information, The hypotheses are as follow: H0: p = 0.40 H1: p ≠ 0.40

Q: Births A random sample of 860 births in New York State included 426 boys and 434 girls. Use a 0.05…

A: The claim that boys and girls are equally likely is null hypothesis. Thus, the alternative…

Q: Test the claim that the proportion of people who own cats is smaller than 70% at the 0.10…

A:

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.