2:05 PM elearning.utdallas.edu ll Verizon LTE Course Homepage > Homework > HW 6

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2:05 PM elearning.utdallas.edu ll Verizon LTE Course Homepage > Homework > HW 6 Due February 27th HW 6 Due February 27th PSY 2317.501 Homework #6 February 27th, 2018 0.33. Homework MUST be turned in stapled with legible answers at the beginning of class on Tuesday to be graded. A professor wants to determine if his class of 38 students got a higher average on their final exam(72% with a standard deviation of 5%) than all of the other (69% with a standard deviation of 10%). a. State the null and alternative at a university s using only b. Conduct the most appropriate analysis for your data and report the observed value. Show your work. c. Identify the critical valuc. Use an alpha of.01 d. Compare the values you obtained for b and c and state your conclusion in APA format

Explanation / Answer

2)
a) H0: The average weight of the greater population of all customers who work out at her gym 167 lbs
H1: The average weight of the greater population of all customers who work out at her gym not 167 lbs

b) Test statistic
t = (xbar - Mu) / (s/sqrt(n-1)) = (154 - 167)/ (10/sqrt(30)) = -13 / 1.8257 = -7.1204

c) Critical t:        ±2.7564

d) Here t value is not in critical value so we reject H0

thus we conclude that The average weight of the greater population of all customers who work out at her gym not 167 lbs

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