The 2006 Statistical Abstract of the United States reports on a survey that asked a national sample of 80,000 American households about pet ownership. Suppose (for now) that one-third of all American households own a pet cat. This survey found that 32.8% of the households sampled owned a pet cat. Is this number a parameter or a statistic? Calculate the Z-score of this sample proportion (0.328).

The 2006 Statistical Abstract of the United States reports on a survey that asked a national sample of 80,000 American households about pet ownership. Suppose (for now) that one-third of all American households own a pet cat. This survey found that 32.8% of the households sampled owned a pet cat. Is this number a parameter or a statistic? Calculate the Z-score of this sample proportion (0.328).

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

See similar textbooks

Related questions

Q: A sample of 10 test coupons from two companies, reveals the titanium content in an aircraft- grade…

Q: Suppose the accompanying summary statistics for a measure of social marginality for samples of…

Q: In a test that measures the creativity variable in the general population of adolescents, the scores…

A: From the provided information, Population mean (µ) = 11.5 Sample size (n) = 25

Q: Use the report of statistical research to identify the following. a) whether it was an observational…

A: Introduction: The study involved 400 men and women with normal and high blood pressures.

Q: A sample of 124 kissing couples were observed, with 44 of them leaning their heads to the left. Use…

A: The test statistic for One sample proportion test is as follows…

Q: A sample of n = 20 scores has a M = 20 and a variance of 9. What is the standard deviation?

Q: Suppose that it is reasonable to regard these three samples as random samples from the three student…

Q: B. Edna ranked 75th in her senior class of 400 students. Rey is in the same senior class and has a…

A: We have to find whose rank is better in two problems B and C.

Q: In ongoing economic analyses, the U.S. federal government compares per capita incomes not only among…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: A sample of 12 scores has a variance of s2 = 48. What is the estimated standard error for the sample…

Q: A physician employed by a large corporation believes that due to an increase in sedentary life in…

Q: For a population with μ = 80 and σ = 10,what is the z-score corresponding to X = 95?

A: Given, μ=80σ=10x=95

Q: A physics tuition teacher claims that the usual practice of going through exercises during the class…

A: The mean difference is tested between the two independent samples are calculated using the t test…

Q: To combat antibiotic resistance, the Quality Improvement Consortium recommends a throat swab to…

Q: A biologist looked at the relationship between number of seeds a plant produces and the percent of…

A: In the given case we need to determine if there exists a statistically significant effect of seeds…

Q: A psychologist is studying the effects of lack of sleep on the performance of various…

A: The following information has been provided: Hypothesized Population Mean (μ)(\mu) = true mean…

Q: A news article reported that college students who have part-time jobs work an average of 15 hours…

Q: A sample of 4 scores has a variance of s2 = 64. What is the estimated standard error for the sample…

A: Standard Error: Standard error gives the accuracy of a sample mean by measuring the…

Q: Conduct a hypothesis test to determine if the data provide evidence that the mean pounds of product…

A: Let µ be the true mean pounds of product produced in an hour. The aim of the researcher is to check…

Q: Fill in the blank: For these data, 1999 per capita incomes that are less than the mean of the…

A: We perform regression using the step by step procedure in excel: Enter the data into the Excel…

Q: Did survival rate for passengers on the Titanic really depend on the type of ticket they had?…

A: H0: Survival and ticket class are independent H1: Survival and ticket class are not independent.

Q: How does the cost of shipping a standard-sized crate relate to the distance of the destination? Can…

Q: A researcher conducts an independent-measures study comparing two treatments and reports the t…

A: Solution: Given information: Test statistic t(25) = 2.071 α=0.05 Level of significance

Q: (d) adjusted coefficient of determination for each of the models in (a). Based on this measure,…

A: Reviewing information, n=No. of vehicles= 30 Y : Gas mileage of cars in MPG Var(Y)= 39.28

Q: For a sample of n = 11 scores with SS = 440. What is the sample variance and the estimated standard…

A: Sample Variance s2 = SS/n-1 Estimated standard error sM = s/sqrt(n).

Q: A sample of n = 16 scores has a mean of M = 40 and a variance of s2 = 128. What is the estimated…

A: It is given that the variance is 128 and the sample size is 16.

Q: Use the report of statistical research to identify the following. a) whether it was an observational…

A: Introduction: The study involved 400 men and women, and tested their memory and reaction time.

Q: A psychologist studied the attitudes of younger and older adults toward ethnic based violence and…

A: 1.

Q: For a two-sided test of hypothesis of a single parameter with population variance known, for a given…

A: Given,test statistic(Z)=1.8α=0.05Zα2 =1.96And the given test is two tailed test.

Q: A sample of 60 students at De Anza College was taken to estimate the average number of sodas…

A: Given A sample of 60 students at De Anza College was taken to estimate the average number of sodas…

Q: The average total dollar purchase at a convenience store is less than that at a supermarket. Despite…

Q: According to the U.S. Climate Data website, the average monthly rainfall totals (in inches) in San…

A: Assuming the significance level is p=0.95

Q: According to a certain government agency for a large country, the proportion of fatal traffic…

Q: • The paper referenced in the previous exercise gave the accompanying data on the at which smoking…

A: p1,p2,p3 and p4 denote the true proportion of men who smoked low-tar cigarette under different age…

Q: A sport psychologist wanted to test the extent to which daily intake of fat in grams, and amount of…

A: The data is given as: Fat (grams) . Exercise (minutes). Health (BMI) 8.…

Q: The table below summarizes baseline characteristics of patients participating in a clinical trial.…

A: A) Decision Rule: If p-value ≤ α, then reject the null hypothesis. If p-value > α, then do…

Q: A medical researcher claims that the variance of the heart rates (in beats per minute) of smokers is…

Q: If you have a known value of 16, which of the following is the best average of your data to verify…

A: Here We have given a known value of 16 if we go through the option and find their lower and upper…

Q: The table below summarizes baseline characteristics of patients participating in a clinical trial.…

A: Answer : The data represents baseline characterstics on patients participating in a clinical trial.

Q: A random sample of nine cities gave the following figures for annual per capita of cigarette…

A: Given information: Cigarette consumption(x) Death Rate per million 470 180 510 140 400 160…

Q: A psychologist is studying the effects of lack of sleep on the performance of various…

A: Given information Hypothesized mean µ = 1.70 seconds Sample size (n) = 36 Mean x̅ = 1.82 Standard…

Q: A scrap metal dealer claims that the mean of his cash sales is 'no more that R80', but an Internal…

A: Solution: The given claim is that mean cash sales is no more than R80. From the given information n=…

Q: The following data represent the battery life, in hours, for a random sample of 10 charges on a…

Q: A consumer group, concerned about the mean fat content of a certain grade of ground beef, submits a…

A: Given Information: Sample Percentage of Fat 1 21 2 18 3 19 4 16 5…

Q: Executives of a supermarket chain are interested in the amount of time that customers spend in the…

A: Here our null hypothesis is the mean is equal to 40 and the alternative hypothesis is mean is…

Q: Which of these is a question that would require a z test? Question 31 options: Does a sample of…

A: Z test : The one-sample z-test is used when a sample is from a particular population.

Q: A two-sided t-test for a population mean is conducted with H0:  = 80. If a 99 percent t-interval…

A: Confidence intervals use data from a sample to estimate a population parameter. Hypothesis tests use…

Question

The 2006 Statistical Abstract of the United States reports on a survey that asked a national sample of 80,000 American households about pet ownership. Suppose (for now) that one-third of all American households own a pet cat. This survey found that 32.8% of the households sampled owned a pet cat. Is this number a parameter or a statistic? Calculate the Z-score of this sample proportion (0.328).

Expert Solution