6/11 are girls since there is 11 kids total and only 6 girls.
The correct answer is that it is 6% higher than the theoretical probability. You can find this because with 2 possible, equal outcomes, the theoretical probability is that you will get heads and tales 75 times. However, since we got heads 84 times in the experiment, we know that it is 6% more than 75.
Answer:
There is not enough statistical evidence in the sample taken by the veterinarian to support his skepticism
Step-by-step explanation:
To solve this problem, we run a hypothesis test about the population proportion.
Proportion in the null hypothesis
Sample size
Sample proportion
Significance level
Test statistic
Left critical Z value (for 0.01)
Calculated statistic =
Since, test statistic is greater than critical Z, the null hypothesis cannot be rejected. There is not enough statistical evidence to state that the true proportion of pet owners who talk on the phone with their pets is less than 37%. The p - value is 0.79860.