A researcher wants to test how much time stay at home dads do chores and housework compared to stay at home moms in one week. The study randomly selects 30 men and 30 women who are stay at home parents with one child and analyze their time spent doing housework and childcare in a week to find the average number of hours per week for each group. Which of the following should the researcher use to determine whether there is a difference in mean number of hours spent working as stay at home parents between men and women?a two-sample t-testb z-test for the population meanc paired t-testd ANOVA

The correct option is;

a. two-sample t-test

Step-by-step explanation:

Here, since the test involves taking samples from two different population and then comparing parameters within the statistical results obtained from the samples, the appropriate statistical hypothesis testing to be used is the two sample t-test

A two sample t- test is used in statistical hypothesis testing on data from two samples obtained from different population so as to find out if the difference in the parameters of the two population are statistical significant.

the answer is actually

Step-by-step explanation:

1. Start with 8 negative tiles

2.Separate  the tiles into 2 equal groups

3. Count the number of tiles in each group.

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x   - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°

351°f

step-by-step explanation: