150 sixth-form students are sampled (a simple random sample) from 3000 in sixth-form colleges across the West Midlands. From the sampled students, an average IQ of 115 is determined, with a standard deviation of 10. What is the 99% confidence interval?
A. 115 ± 0.01
B. 115 ± 1.22
C. 115 ± 2.10
D. 115 ± 3.22
Answer: C
You might also like to view...
An unhelpful approach to dealing with violent play is
a. to discuss with families. b. to ignore it until it stops. c. to allow the play but ask questions about it. d. to limit the play and violent toys.
Services in the WRAP and /or systems of care might include
a. home-based interventions. b. special class placement. c. therapeutic foster care. d. home-based interventions, special class placement, and therapeutic foster care.
When there is conflict between adolescents and their parents, the topic of that conflict most often is
A. adolescent smoking or drinking. B. adolescent sexuality. C. everyday events like homework and messy rooms. D. the adolescent's boyfriend or girlfriend.
Mrs. Trujillo decided to allow her 1st grader, Maria, to help with making a healthy dinner. This will help Maria to avoid _______
A. obesity. B. asthma. C. lead poisoning. D. dental caries.