Indicate if the hypothesis test is for:
a) 1- proportion z test
b) One population Test (t-test)
c) Z- test
1. In 2008, there were 507 children in Arizona out of 32,601 who were diagnosed with Autism Spectrum Disorder (ASD) ("Autism and developmental," 2008). Nationally 1 in 88 children are diagnosed with ASD ("CDC features -," 2013). Is there sufficient data to show that the incident of ASD is more in Arizona than nationally?
2. The amount of sugar in a Krispy Kream glazed donut is 10 g. Many people feel that cereal is a healthier alternative for children over glazed donuts. Table contains the amount of sugar in a sample of cereal that is geared towards children ("Healthy breakfast story," 2013). Is there enough evidence to show that the mean amount of sugar in children’s cereal is more than in a glazed donut? Test at the 5% level.
10 14 12 9 13 13 13 11 12 15 9 10 11 3 6 12 15 12 12
1. It is a 1 proportion z test
As we are testing for the proportions and sample size is large enough to use the normal distribution for sample proportion.
2. The sample size is small and population std deviation is not known. Hence considering the normal population, t test would be appropriate.
Indicate if the hypothesis test is for: a) 1- proportion z test b) One population Test (t-test) c) Z- test 1. In 2008, t...
Indicate if the hypothesis test is for: a) 1- proportion z test b) One population Test (t-test) c) Z- test 1. In 2008, there were 507 children in Arizona out of 32,601 who were diagnosed with Autism Spectrum Disorder (ASD) ("Autism and developmental," 2008). Nationally 1 in 88 children are diagnosed with ASD ("CDC features -," 2013). Is there sufficient data to show that the incident of ASD is more in Arizona than nationally? 2. The amount of sugar in...
In 2008, there were 507 children in Arizona out of 32,601 who were diagnosed with Autism Spectrum Disorder (ASD) ("Autism and developmental," 2008). Nationally 1 in 88 children are diagnosed with ASD ("CDC features -," 2013). Is there sufficient data to show that the incident of ASD is more in Arizona than nationally? Test at the 1% level.