THE ASQ-3 is a standardized screeing tool. Scores on each domian of the screening tool, communication , gross motor, fine motor, problem solving, and personal - social are normally distributed, and each have a standard deviation for each age group.The mean problem sovling score of 3 years old is 48.7, with a stadard deviation of 9.2.You believe that 3 year old who attend a particular pre school have a better than average problem solving skills.. All of the 3 year old attending that pre school are screened using ASQ-3. Here is the sample data from a particular pre school program Scores: 55, 67,54, 59, 65, 53, 49 50, 51, 48 ,65, 59, 61, 55, 67, 56, 60, 65, 48, 63, 53, 49, 65, 62, 57. Test the hypothesis at the 5 % level significance. (alpha =0.05) using the five step procedure given below. step1 .Specify the null hypothese step 2: specify the alternative hypothese; step3: set the alpha level step4 : calculate the test statistic and the corresponding p value step5: draw up a conclusion clearly state the null and alternative hypotheses. Round up answer to 2 decimal places Based on the Z (calculated) score obtained above , complete the following table by indicating the correct conclusion. alpha type of hypothesis type of test Z(critical) conclusion .05 Non-directional two tailed 1.96 .01 directional one tail 2.33 .01 non-diectional two tail 2.575

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 13PPS

See similar textbooks

Related questions

Question

THE ASQ-3 is a standardized screeing tool. Scores on each domian of the screening tool, communication , gross motor, fine motor, problem solving, and personal - social are normally

distributed, and each have a standard deviation for each age group.The mean problem sovling score

of 3 years old is 48.7, with a stadard deviation of 9.2.You believe that 3 year old who attend a

particular pre school have a better than average problem solving skills.. All of the 3 year old attending that pre school are screened using ASQ-3. Here is the sample data from a particular pre school program

Scores: 55, 67,54, 59, 65, 53, 49 50, 51, 48 ,65, 59, 61, 55, 67, 56, 60, 65, 48, 63, 53, 49, 65, 62, 57.

Test the hypothesis at the 5 % level significance. (alpha =0.05) using the five step procedure given below.

step1 .Specify the null hypothese

step 2: specify the alternative hypothese;

step3: set the alpha level

step4 : calculate the test statistic and the corresponding p value

step5: draw up a conclusion

clearly state the null and alternative hypotheses. Round up answer to 2 decimal places

Based on the Z (calculated) score obtained above , complete the following table by indicating the

correct conclusion.

alpha type of hypothesis type of test Z(critical) conclusion

.05 Non-directional two tailed 1.96

.01 directional one tail 2.33

.01 non-diectional two tail 2.575

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Expert Solution