Question

Most penguin species are not sexually dimorphic, which means they lack obvious outward body characteristics which...

Most penguin species are not sexually dimorphic, which means they lack obvious outward body characteristics which indicate sex. Observation of behavior or a blood test can determine Penguin sex. A penguin researcher is interested in estimating the proportion of females in a large penguin population. She takes a random sample of n = 20 penguins and determines the sex of each one using a blood test. She finds 12 males and 8 females. Let π be the proportion of females in the population.

(a) Find a point estimate of π.

(b) Find the estimated standard deviation of your estimate.

(c) Is it reasonable to compute a 95% confidence interval for π using the normal approximation in this case? If it is possible, explain why, and make the interval. If it is not reasonable, explain why.

(d) Are the data strong evidence the population proportion of females is different from 63%? Run a test at level α = .05 to find out.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
2. Most penguin species are not sexually dimorphic, which means they lack obvious outward body characteristics...
2. Most penguin species are not sexually dimorphic, which means they lack obvious outward body characteristics which indicate sex. Observation of behavior or a blood test can determine Penguin sex. A penguin researcher is interested in estimating the proportion of females in a large penguin population. She takes a random sample of n = 20 penguins and determines the sex of each one using a blood test. She finds 12 males and 8 females. Let π be the proportion of...
1. Most penguin species are not sexually dimorphic, which means they lack obvious outward body characteristics...
1. Most penguin species are not sexually dimorphic, which means they lack obvious outward body characteristics which indicate sex. Observation of behavior or a blood test can determine Penguin sex. A penguin researcher is interested in estimating the proportion of females in a large penguin population. She takes a random sample of n = 20 penguins and determines the sex of each one using a blood test. She finds 12 males and 8 females. Let π be the proportion of...
Could you please solve these using r code if necessary. If not please show the work...
Could you please solve these using r code if necessary. If not please show the work thank you. 2. Most penguin species are not sexually dimorphic, which means they lack obvious outward body characteristics which indicate sex. Observation of behavior or a blood test can determine Penguin sex. A penguin researcher is interested in estimating the proportion of females in a large penguin population. She takes a random sample of n = 20 penguins and determines the sex of each...
The reproductive system, pregnancy, growth and development are being studied in this chapter. These cases will...
The reproductive system, pregnancy, growth and development are being studied in this chapter. These cases will all relate to issues with endocrine organs and hormones. Patient Case Information: Carrie and Grant have been trying to get pregnant for over a year without success. They both go to a reproductive specialist. Carrie is a 25-year-old runner who is in good health. She is 5 foot 6 inches tall, and she weighs 85 pounds. Her percent body fat is 3%, and she...
Simple Dominance with 2 genes A gene in cats causes them to be black (dominant) or...
Simple Dominance with 2 genes A gene in cats causes them to be black (dominant) or brown (recessive). A second gene causes cats to be agouti (have stripes on their hairs) or non-agouti (solid colored hairs). If you did a dihybrid cross between two black haired agouti cats, what fraction of the offspring would be expected to have each phenotype? If a dihybrid black agouti cat mated with a brown cat that was heterozygous for the agouti gene, what fraction...
QUESTION 1 ? What is the relationship between family dysfunction and schizophrenia? a. ?Research has substantiated...
QUESTION 1 ? What is the relationship between family dysfunction and schizophrenia? a. ?Research has substantiated a link between family dysfunction and schizophrenia but can't say which causes the other. b. ?Family dysfunction is a major causative factor for schizophrenia. c. ?Research has failed to substantiate a direct causal link between family dysfunction and schizophrenia. d. ?Family dysfunction plays a minor role in developing schizophrenia. 1.00000 points    QUESTION 2 ? Chuck has no life plan; he simply lives from...