Question

In the Spring of 2021 the statistics course did a survey of the average number of parking tickets students received by gender. Which has been shared below. Based on the data below which statement would be the best null hypothesis?

Gender # of hours
male 6
female 8
female 8
male 3
female 7
female 5
male 3
male 2
female 9
female 7
female 2
female 3
male 9
female 0
female 2
male 4
male 9
female 12
female 15
female 3
female 6
male 7
female 3
female 8
male 3
male 6
female 7
female 8

Answer 1

There is no difference between the two groups.

Explanation:

The test hypothesis (null and alternative) are usually employed in evaluating if there is a statistical significance in a claim about the mean, standard deviation or variance of a sample and it's population parameter.

When comparing two independent variables, The null hypothesis usually establish that there is no difference between the mean value of samples, while the alternative hypothesis is the opposite.

The data given shows values for two independent groups ; Male and Female.

The null hypothesis will be:

H0 : There is no difference between the two groups.

H0 : μ1 - μ2 = 0