Statistics Quiz with Solutions (10 Questions)

by Electra Radioti

Statistics Quiz with Solutions (10 Questions)

Statistics Quiz with Solutions (10 Questions)

1 / 10

Given a population proportion \(p = 0.56\) and a random sample of size \(n = 120\), calculate the probability that the sample proportion \(\hat{p}\) is less than or equal to \(0.6\).

2 / 10

Which of the following is not a random experiment?

3 / 10

In a random sample of size 700, 425 have the characteristic of interest. Identify the statement that justifies why one interval is longer than the other.

4 / 10

The probability distribution of a statistic is called its _____.

5 / 10

In which of the following situations is a census preferred over a sample?

6 / 10

In order to get promoted to the next grade, a student is required to score above 55 in the final test. Assume the scores to be normally distributed with a mean of 60 and a standard deviation of 5.5. Calculate the percentage of students who will be promoted to the next grade.

7 / 10

Two hundred randomly selected women in a certain city, including those who are working, were asked the time they spend in the beauty salon for each visit. The average time was 44 minutes with a standard deviation of 16 minutes. Construct an 80% confidence interval for the mean time spent in the salon by all the women in the city.

8 / 10

The measurements of sample elements are collectively called the _____ data.

9 / 10

Which of the following data sets represents a population?

10 / 10

For a value x in a data set, if P percent of the values are less than or equal to x, then x is called the _____.

 

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