Question

Many companies use well–known celebrities as spokespersons in their TV advertisements. A study was conducted to determine whether brand awareness of female TV viewers and the gender of the spokesperson are independent. A sample of 300 female TV viewers was asked to identify a product advertised by a celebrity spokesperson. The gender of the spokesperson and whether or not the viewer could identify the product was recorded. The number in each category are given below: Male Celebrity Female Celebrity Identified product 41 61 Could not identify 109 89 At a 1% level of significance, the critical value of this 2 test for independence is ______?
1. 3:8415
2. 5:9914
3. 9:4877
4. 6:635
5. 8:153

Answer 1

Solution: The correct answer is

Explanation:

It is required to find the critical value for the given hypothesis test.

The significance level given in the question is 0.01.

Now to find the critical value at 0.01 significance level for can be found using the chi-square table.