The table below shows the number of students in each year at a certain university: Year...

The table below shows the number of students in each year at a certain university:

Year of study 1 2 3 4 5 6 7

No. of students 300 280 275 175 92 48 30

You would like to select a random sample of 100 students from this university.

i. Explain how you would choose a simple random sample.

ii. Explain how you would choose a sample using systematic (interval) sampling method.

iii. If you use stratified sampling method to choose a sample, explain how this could be done and how many students from each year group are to be chosen for the sample.

Solutions

Expert Solution

orchestra answered 1 year ago

Next > < Previous

Related Solutions

The table below shows the number of male and female students enrolled in nursing at a university for a certain semester.

The table below shows the number of male and female students enrolled in nursing at a university for a certain semester. A student is selected at random. Complete parts (a) through (d). Nursing majorsNon-nursing majorsTotalMales9810161114Females60017292329Total69627453443(c) Find the probability that the student is not female or a nursing major. P(not being female or being a nursing major)=_______ Round to the nearest thousandth as needed.) (d) Are the events "being male" and "being a nursing major" mutually exclusive? Explain. A. Yes, because one can't be male and...

The table below shows the number of University classrooms cleaned in an evening varies with the...

The table below shows the number of University classrooms cleaned in an evening varies with the number of staff members assigned. Staff assigned 0 1 2 3 4 5 6 7 Classrooms cleaned 0 3 7 12 16 17 17 16 A. What is the marginal physical product of the second staff member? B. Average product of labor is total output divided by the number of staff members assigned. What is the average product of four staff members? C. Is...

The table below shows the number of male and female students enrolled in nursing at a...

The table below shows the number of male and female students enrolled in nursing at a particular university for a recent semester. (a) Find the probability that a randomly selected student is male, given that the student is a nursing major (b) Find the probability that a randomly selected student is a nursing major, given that the student is male.Nursing MajorsNon-nursing majorsTotalMales9710821179Females75016332383Total84727153562(a) Find the probability that a randomly selected student is male, given that the student is a nursing major The probability is...

The table below shows the number of male and female students enrolled in nursing at a...

The table below shows the number of male and female students enrolled in nursing at a particular university for a recent semester a) Find the probability that a randomly selected student is male, given that the student is a nursing major (b) Find the probability that a randomly selected student is a nursing major, given that the student is male. $$ \begin{array}{cccc} & \text { Nursing Majors } & \text { Non-nursing majors } & \text { Total } \\ \text { Males...

The table below shows the number of male and female students enrolled in nursing at a...

The table below shows the number of male and female students enrolled in nursing at a university for a certain semester. A student is selected at random. Complete parts? (a) through? (d). Nursing majors??? ?Non-nursing majors Total Males 9898 10141014 11121112 Females 700700 17241724 24242424 Total 798798 27382738 35363536 ?(a) Find the probability that the student is male or a nursing major.P(being male or being nursing major)= ?(Round to the nearest thousandth as? needed.) ?(b) Find the probability that the...

The table below shows the number of students absent on the particular day of the week:...

The table below shows the number of students absent on the particular day of the week: Day M Tu W Th F Number 111 80 85 94 99 Test if the distribution of students absent is uniform through the week with the significance level of 5%.

The table below shows the number of deaths in the U.S. in a year due to...

The table below shows the number of deaths in the U.S. in a year due to a variety of causes. For these questions, assume these values are not changing from year to year, and that the population of the United States is 312 million people. Cause Deaths Passenger car occupant (driver or rider) 13,100 Motorcycle (driver or rider) 4,500 Tornado 553 Skydiving 56 a) What is the probability that an American chosen at random died as a passenger car occupant...

The table below shows the number of deaths in the U.S. in a year due to...

The first row of the table below shows the number of individuals of each of three...

The first row of the table below shows the number of individuals of each of three genotypes in a given population in the summer of 2015. The second row shows the relative probability that each of these genotypes survives over the winter (the relative fitness based on survival). If you resurvey the population in the spring of 2016, how many SS individuals would you expect to find? Genotype TT TS SS Number of individuals (Fall) 582 400 1645 Probability of...

The table below shows primary school enrollment for a certain country. Here, xx represents the number...

The table below shows primary school enrollment for a certain country. Here, xx represents the number of years after 18201820, and yy represents the enrollment percentage. Use Excel to find the best fit linear regression equation. Round the slope and intercept to two decimal places. x y 0 0.1 5 0.1 10 0.1 15 0.2 20 0.2 25 0.3 30 0.4 35 0.5 40 0.6 45 1.1 50 1.5 55 3.0 60 4.5 65 5.5 70 6.1 75 6.8 80 ...

Subjects