. In s study done by the Ohio Department of Job and Family Services, it was...

70.2K

Verified Solution

Question

Basic Math

. In s study done by the Ohio Department of Job and FamilyServices, it was determined 38 (out of 62) poor children whoattended preschool needed social services later in life compared to49 (out of 61) poor children who did not attend preschool. A. Doesthis study provide significant evidence that preschool reduces theneed for social services later in life? Do a complete andappropriate hypothesis test using ? = .01. B. Construct a 98%confidence interval estimate of the difference in the proportion ofpoor children who attended preschool and poor children who did notattend preschool who needed social services later in life.Interpret the practical meaning of the resulting interval estimate,in the context of the problem, in plain English.

Answer & Explanation Solved by verified expert

3.8 Ratings (494 Votes)

Given that sample one x1 38 n1 62 p1 x1n10613 sample two x2 49 n2 61 p2 x2n20803 finding a p value for proportion px1 x2 n1n2 p0707 q Value For Proportion 1p0293 null Ho p1 p2 alternate H1 p1 p2 level of significance 001 from standard normal tableleft tailed z 2 2326 since our test is lefttailed See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member