Question 3 The average yearly cost per household of owning a dog is $186.80. Suppose that...
The average annual cost of the first year of owning and caring for a large dog is $1,843 (US News and World Report, September 9, 2013). The Irish Red and White Setter Association of America has requested a study to estimate the annual first-year cost for owners of this breed. A sample of 50 will be used. Based on past studies, the population standard deviation is assumed known with σ = $255. a. What is the margin of error for...
the question is “Create a binomial distribution frequency graph related to dog ownership”. i dont know exactly what information is needed but the sample size is 7 and p=0.365 Dogs 36.5% 43,346,000 1.6 69,926,000 2.6 Percent of households owning Number of households owning Average number owned per household Total number in United States Veterinary visits per household per year (mean) Veterinary expenditure per household per yea (mean) Veterinary expenditure per animal (mean) $378 $227 Dogs 36.5% 43,346,000 1.6 69,926,000 2.6...
Question text According to the most recent census, the average total yearly expenses of households in Wake County is $45,900. It is also known that the distribution of household expense in Wake County is strongly skewed to the right with a standard deviation of $8,370. A researcher is going to randomly select a sample of 7 households from Wake County. Which of the following is true? Select all that apply. Select one or more: a. The sampling distribution of the...
1. The average annual cost of the first year of owning and caring for a large dog is $1200. The Irish Red and White Setter Association of America has requested a study to estimate the annual first-year cost for owners of this breed. A sample of 50 will be used. Based on past studies, the population standard deviation is assumed known with o = $ 200. a. What is the 90% confidence interval of the mean cost of the first...
According to the most recent census, the average total yearly expenses of households in Wake County is $38,500. It is also known that the distribution of household expenses in Wake County is strongly skewed to the right with a standard deviation of $10,500. A researcher is going to randomly select a sample of 5 households from Wake County. Which of the following is true? Select all that apply. Select one or more: a. The sampling distribution of the sample mean...
Complete parts (a) and (b) below. The number of dogs per household in a small town Dogs 0 2 3 Probability 0.638 0.225 0.088 0.026 4 0.014 5 0.009 (a) Find the mean, variance, and standard deviation of the probability distribution. Find the mean of the probability distribution. u= (Round to one decimal place as needed.) Find the variance of the probability distribution 02 = (Round to one decimal place as needed.) Find the standard deviation of the probability distribution...
The average annual cost of the first year of owning and caring for a large dog is $1,843 (US News and World Report, September 9, 2013). The Irish Red and White Setter Association of America has requested a study to estimate the annual first-year cost for owners of this breed. A sample of 50 will be used. Based on past studies, the population standard deviation is assumed known with o $255. a. What is the margin of error for a...
According to Nielsen Media Research, the average number of hours of TV viewing per household per week in the United States is 50.4 hours. Suppose the standard deviation is 11.8 hours and a random sample of 42 U.S. households is taken. A. What is the probability that the sample average is more than 52 hours? B. What is the probability that the sample average is less than 47.5 hours? C. What is the probability that the sample average is less than 40 hours?...
A frequency distribution is shown below. Complete parts (a) through (e) The number of dogs per household in a small towr Dogs Households 1427 42 5 26 11 164 41 (a) Use the frequency distribution to construct a probability distribution. P(x) Round to the nearest thousandth as needed.) (b) Find the mean of the probability distribution. (Round to the nearest tenth as needed.) (c) Find the variance of the probability distribution. ?2-O (Round to the nearest tenth as needed.) (d)...
QUESTION 6 A researcher claims that the average yearly consumption of soft drinks per person is less than 60 gallons. In a sample of 85 randomly selected people, the mean of the yearly consumption was 58.8 gallons. The standard deviation of the population is 7.5 gallons. At = 0.005, test the researcher's claim. What is the test statistic for this problem? -1.60 -1.70 OOOO