Question

Question Help For a study of adolescents discosure of their dating and romantic relationships, a sample of 238 high school students was surveyed One of the variabies of interest was the ilevel of disclosure to an adolescents mother (measured on a 5-paint scale, where 1-"never telr and 5- "always tel) The sampled high school students had a mean disclosure score of 3.33 anda standard deviation of 1.13. The researchers hypothesize that the true mean disclosure score of all adolescents will exceed 3. Do you believe the researchers? Conduct a formal test of hypothesis using a 0.05, Set up Ho and Hg for testing whether the true mean disclosure score of all adolescents exceeds 3. Choose the correct answer below OA Ho-3 Hp3 B. Ho:p-3 O C. Ho u#3 D. Ho-p-3 H3 If a 0.05, find the rejection region for the test. Choose the corect answer below. OA z>1.96 B z<-1.645 O C. z>1.96 or z-1.96 D. 2>1.645 or z<-1.645 OE z<-1.96 21.645 Calculate the value of the test statistic. (Round to two decimal places as needed.) More Enter your answer in the answer box and then click Check Answer part remaining Clear Al

Answer 1

# here

H0:$\mu$=3

V/s Ha: $\mu$ >3

# at 0.05 the rejection region is

z>1.64

# given

$\bar{x}$=3.33

$\sigma$=1.13

n=238

# test statistics is

T- 40

3.33 - 3 1.13 238

z=4.51

#the test statistics is 4.51

# here z>1.645 hence we reject H0 at 5 % l.o.s

# conclusion:there is sufficient evidence to conclude that mean disclosure score foll all adolescents will exceed 3