Answer to Question #348909 in Statistics and Probability for Nicole

Question

I. Determine the given of the problems below and formulate the null and alternative hypothesis both in words and symbols. Write your answer in your notebook. Please follow the format in the examples.

3. A kinder teacher developed a coloring worksheet for her pupils. Using this worksheet the pupil’s performance has a mean score of 90 and a standard deviation of 10. Fifty kinder pupils from a certain barangay were asked to answer the said worksheet and found that their mean score was 95 with a standard deviation of 5. Test the hypothesis at 1% significance level.

H0: ________________________________________________________________

Ha: ________________________________________________________________

Answer 1

3.

$H_0:$ mean score is 90.

$H_a:$ mean score is not 90.

$H_0:\mu=90.$

$H_a:\mu\not=90.$