A survey of students living in an apartment building is to be conducted. The house has 10 floors of rooms for rent, with 20 rooms in every floor and 2 people occupying every room. What type of sampling method is used if two floors are randomly selected and every student on the chosen floors is surveyed?

What is the relationship between the mean of a population and the mean of the sampling distribution of the sample mean?

The average lot size of the houses in a small village is 55 square meters with a standard deviation of 10 square meters. Find the mean of the sampling distribution of the sample mean with a sample size of 50 houses if lot sizes are normally distributed.

If the variance of the sampling distribution of the mean is 9, what is the standard error?

A claim states that the mean income of families in a certain city is at least ₱18 500. What kind of hypothesis does the claim state?

It is a type of error wherein the null hypothesis is rejected when in fact it is true.

A fast food chain owner claims that the average number of people who visits their store is 1350 daily with a standard deviation of 30. A random sample of 20 days showed that the average number of people who visits their store is 1400. What is the appropriate form of test statistic?

How can the standard error be reduced in surveys?

Which of the following data is qualitative?

Based on the scatter plot as shown below, which of the following monthly rent corresponds to a 26  $$m^2$$ -condominium unit?

The scatter plot as shown below illustrates a linear association. What correlation exists between the two data given?

Which of the following scatter plots show a moderately negative correlation?

Which of the following values of r shows the strongest correlation?

The correlation of the following pairs of variables can be calculated using the Pearson’s sample correlation coefficient except for one. Which of the following is not included?