subject
Mathematics, 12.08.2020 22:01 leximae7720

Infants weighing less than 1500 g at birth are classed as "very low birth weight." Low birth weight carries many risks. IQ tests are designed to produce IQ scores varying Normally with standard deviation σ = 15. They are also scaled so that the mean score in a large population should be μ = 100. One study followed 113 male infants with very low birth weight to adulthood. At age 20, the mean IQ score for these men was x¯= 87.6. We suspect that the very‑low‑birth‑weight population has a mean IQ score less than 100. A hypothesis test would have the null hypothesis that the mean IQ of very‑low‑birth‑weight male babies is 100 against the alternative hypothesis that the mean is less than 100. Select the correct statement concerning what it means to make a Type I error and a Type II error in this setting. A) A Type I error would be concluding that the mean IQ of very‑low‑birth‑weight male babies is less than 100 when in reality the mean is 100. A Type II error would be failing to reject that the mean IQ of very‑low‑birth‑weight male babies is 100 when in reality the mean is less than 100.B) A Type I error would be concluding that the mean IQ of very‑low‑birth‑weight male babies is greater than 100 when in reality the mean is less than 100. A Type II error would be failing to reject that the mean IQ of very‑low‑birth‑weight male babies is 100 when in reality the mean is less than 100.C) A Type I error would be failing to reject that the mean IQ of very‑low‑birth‑weight male babies is less than 100 when in reality the mean is less than 100. A Type II error would be concluding that the mean IQ of very‑low‑birth‑weight male babies is less than 100 when in reality the mean is greater than 100.D) A Type I error would be failing to reject that the mean IQ of very‑low‑birth‑weight male babies is 100 when in reality the mean is less than 100. A Type II error would be concluding that the mean IQ of very‑low‑birth‑weight male babies is less than 100 when in reality the mean is 100.

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 13:50
What are the vertical asymptotes of the function f(x) =5x+5/x2 + x-2
Answers: 1
question
Mathematics, 21.06.2019 18:00
The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?
Answers: 3
question
Mathematics, 21.06.2019 19:30
Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?
Answers: 2
question
Mathematics, 21.06.2019 19:40
What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1
Answers: 2
You know the right answer?
Infants weighing less than 1500 g at birth are classed as "very low birth weight." Low birth weight...
Questions
question
Business, 10.11.2020 21:50
question
Mathematics, 10.11.2020 21:50
question
Social Studies, 10.11.2020 21:50
question
Mathematics, 10.11.2020 21:50
question
Mathematics, 10.11.2020 21:50
Questions on the website: 13722361