Question

Asked Feb 15, 2019

51 views

1 Rating

Step 1

In this question we have given the data on situation of university , where some students use university bus service. On the basis of given information we ahve to answer some questions based on that sample.

Step 2

**Parameter:** Parameters refers to the value that defines the whole population. In this question, Parameter is the percentage of population who use campus bus system last week.

**Population:** In this question population is all the students who are studying in the college.

**Sample: **Sample is a subset of population, with the help of which we calculate the statistics and make inferences about the population. In this question 400 students from the list of students with parking stickers is sample.

**Statistic:** It is a numerical value that defines the characteristics of the sample and by the help of statistic we make inferences. In this question “p = 0.20” is statistic because it defines that 20% of sample uses campus bus service last week.

**...**

Tagged in

Q: Flying over the western states with mountainous terrain in a small aircraft is 40% riskier than flyi...

A: (a) Poisson distribution is a good choice for the probability distribution of r:Poisson distribution...

Q: Workers at a large toxic cleanup project are concerned that their white blood cell counts may have b...

A: Let the random variable X be the white blood cell count per cubic millimetre of whole blood in a hea...

Q: The CEO of a cable company claims that the population mean wait time for callers at a company's cust...

A: The aim is to find the accurate statement from the following options to evaluate the population mean...

Q: A student takes a multiple-choice test that has 20 questions. Each question has five choices. The st...

A: Binomial distribution:It is a discrete probability distribution in which each trials have exactly tw...

Q: Nearly one half of americans aged 25 to 29 are unmarried. How large a sample is necessary to estima...

A: The formula for the sample size is as follows:

Q: A researcher says that 50% of the variance in blood pressure can be predicted from HR and that blood...

A: In this question we have the value of coefficient of determination which is equal to 0.50 and we hav...

Q: In a study of 420,077 cell phone users, 107 subjects developed cancer of the brain or nervous system...

A: Given hypothesis test let p be the proportion of cellphone users develop cancer or brain or nervous ...

Q: A machine produces metal rods used in an automobile suspension system. A random sample of 15 rods is...

A: In this question We have the diameter of 15 metal rod, we have to find the 95% confidence interval f...

Q: For what types of data would you use nonparametric verses parametric statistic?

A: In hypothesis testing, the parametric tests are used to make inference on some unknown parameters ba...