In a poll of

593

human resource​ professionals,

49.1

​%

said that body piercings and tattoos were big grooming red flags. Complete parts​ (a) through​ (d) below.

​a) Among the

593

human resource professionals who were​ surveyed, how many of them said that body piercings and tattoos were big grooming red​ flags?

291

​(Round to the nearest integer as​ needed.)

​b) Construct a​ 99% confidence interval estimate of the proportion of all human resource professionals believing that body piercings and tattoos are big grooming red flags.

0.438

less than p less than0.544

​(Round to three decimal places as​ needed.)

​c) Repeat part​ (b) using a confidence level of​ 80%.

_____<p< _________

If you could show all your work it would be greatly appreciated!

Sportz, Inc., manufactures athletic shoes and athletic clothing for both amateur and professional athletes. The company has two product lines (clothing and shoes), which are produced in separate manufacturing facilities; however, both manufacturing facilities share the same support services for information technology and human resources. The following shows total costs for each manufacturing facility and for each support department.

The total costs of the support departments (IT and HR) are allocated to the production departments (clothing and shoes) using a single rate based on the following:

Information technology: Number of IT labor-hours worked by department
Human resources: Number of employees supported by department

Data on the bases, by department, are given as follows:

What are the total costs of the production departments (clothing and shoes) after the support department costs of information technology and human resources have been allocated using (a) the direct method, (b) the step-down method (allocate information technology first), (c) the step-down method (allocate human resources first), and (d) the reciprocal method?

Assume that all of the work of the IT department could be outsourced to an independent company for $97.50 per hour. If Sportz no longer operated its own IT department, 30% of the fixed costs of the IT department could be eliminated. Should Sportz outsource its IT services?

Are very young infants more likely to imitate actions that are modeled by a person or simulated by an object? This question was the basis of a research study. One action examined was mouth opening. This action was modeled repeatedly by either a person or a doll, and the number of times that the infant imitated the behavior was recorded. Twenty-seven infants participated, with 12 exposed to a human model and 15 exposed to the doll. Summary values are shown below.

Is there sufficient evidence to conclude that the mean number of imitations is higher for infants who watch a human model than for infants who watch a doll? Test the relevant hypotheses using a 0.01 significance level. (Use a statistical computer package to calculate the P-value. Use μ_Person − μ_Doll. Round your test statistic to two decimal places, your df down to the nearest whole number, and your P-value to three decimal places.)

t=

df=

P-value=

State your conclusion.

We reject H₀. We do not have convincing evidence that the mean number of imitations is higher for infants who watch a human model than for infants who watch a doll.

We do not reject H₀. We have convincing evidence that the mean number of imitations is higher for infants who watch a human model than for infants who watch a doll.    

We reject H₀. We have convincing evidence that the mean number of imitations is higher for infants who watch a human model than for infants who watch a doll.We do not reject H₀.

We do not have convincing evidence that the mean number of imitations is higher for infants who watch a human model than for infants who watch a doll.

QUESTION 25

1. During the first division of meiosis (meiosis I):

2 points   

QUESTION 26

1. Green plants are considered:

2 points   

QUESTION 27

1. Traits like height or intelligence are polygenic. Polygenic means they:

2 points   

QUESTION 28

1. Hemophilia type A is caused by a recessive allele. We see the disease phenotype almost exclusively in boys. The gene for this blood clotting factor (factor VIII) is probably:

2 points   

QUESTION 29

1. Water is less dense as a solid than as a liquid, so ice floats. This unusual phenomenon is caused by:

2 points   

QUESTION 30

1. A double-blind experiment is when:

2 points   

QUESTION 31

1. Before meiosis, human cells are:

2 points   

QUESTION 32

1. Organic molecules always contain:

2 points   

QUESTION 33

1. A recessive disease allele that is found on one of the autosomal chromosomes will affect:

QUESTION 35

1. Adult dogs are diploid with 78 chromosomes. After meiosis, how many chromosomes are in each dog egg or sperm cell?

2 points   

QUESTION 36

1. We expect identical twins to have all the same alleles because:

2 points   

QUESTION 37

1. What is another way to describe an H+ ion?

2 points   

QUESTION 38

1. Which is a correct difference between Mitosis and Meiosis?

2 points   

QUESTION 39

1. For the first billion years of life on earth, only one type of life form is seen in the fossil record:

2 points   

QUESTION 40

1. The monomers that make up an RNA molecule are:

QUESTION 38

1. Viral capsules are studded with

   		a. RNA polymerases
   		b. Reverse transcriptase
   		c. Proteins which bind to host cell surface proteins
   		d. Double-stranded DNA

2 points   

QUESTION 39

1. The scientists who worked out the structure of DNA and received the Nobel Prize for this discovery are:

   		a. Darwin and Newton
   		b. Hershey and Chase
   		c. Morgan, Griffith and Avery
   		d. Watson, Crick and Wilkins

2 points   

QUESTION 40

1. The two strands of the DNA double helix are attached to one another by:

   		a. Covalent bonds
   		b. Protein scaffolding
   		c. Helicase
   		d. Hydrogen bonds

2 points   

QUESTION 41

1. Which is a description of “RNA processing” in Eukaryotes?

   		a. 5’ cap, Poly-A tail, removal of introns
   		b. mRNA leaves the nucleus and attaches to a ribosome
   		c. A complementary RNA copy is made of a gene sequence
   		d. RNAs that might be viruses are degraded in the cytoplasm

2 points   

QUESTION 42

1. The function of the tRNA is to:

   		a. Transcribe the DNA
   		b. Take the gene sequence from the nucleus to the cytoplasm
   		c. Bring the amino acids to the ribosome for translation
   		d. Supply the energy (GTP) for translation

2 points   

QUESTION 43

1. Cystic Fibrosis is a recessive genetic disease which is often fatal in childhood even with excellent medical treatment. Nevertheless, the cystic fibrosis allele is very common in areas of Europe that used to experience epidemics of cholera and typhoid on a regular basis, and seems to offer protection to carriers. This common occurrence of the CF allele is an example of:

   		a. Genetic dominance
   		b. Co-dominant alleles
   		c. A,B,O blood groups
   		d. Heterozygote advantage

2 points   

QUESTION 44

1. All viruses have:

   		a. A DNA core
   		b. Ribosomes
   		c. A protein capsid
   		d. A membranous envelope

2 points   

QUESTION 45

1. Duchenne muscular dystrophy (DMD) is caused by a recessive allele on the human X chromosome. The patients have muscles that weaken over time because they have absent or decreased dystrophin, a muscle protein. They rarely live past their 20s and do not father children. How likely is it for a woman to have this condition?

   		a. If the mother is a carrier, ¼ of her daughters will have it.
   		b. ½ of the daughters of an affected man could have this condition.
   		c. ¼ of the children of an affected father and a carrier mother could have this condition.
   		d. Very rarely would a woman have this condition; since she would have to have an affected father

2 points   

QUESTION 46

1. Which of the following is an example of polygenic inheritance?

   		a. the ABO blood groups in humans
   		b. Huntington's disease in humans
   		c. white and purple flower color in peas
   		d. adult height in humans

2 points   

QUESTION 47

1. Individuals with 3 copies of chromosome 21 have Down Syndrome. These individuals are correctly described as:

   		a. Triploid
   		b. Monosomic
   		c. Haploid
   		d. Aneuploid

2 points   

QUESTION 48

1. When an mRNA is made into protein, this process is called:

   		a. Translation
   		b. Transcription
   		c. Transposition
   		d. Teleportation

2 points   

QUESTION 49

1. Hemophilia A is a recessive sex-linked disorder characterized by the inability to form normal blood clots. Without medical treatment, this disease is fatal. The "H" is for normal clotting factor VIII, the "h" is the hemophilia allele for abnormal clotting factor. This Punnett square is from a family with the allele for Hemophilia A. What percentage of this couple's sons will suffer from hemophilia?

   		a. 0%
   		b. 25%
   		c. 50%
   		d. 100%

2 points   

QUESTION 50

1. Recessive alleles show in the phenotype:

   		a. In a heterozygous condition
   		b. In a homozygous condition
   		c. Recessive genes never show in the phenotype
   		d. Recessive genes always show in the phenotype

Why is it important to study the economic value of a human life?

Compare and contrast in details human capital and signaling models.

What is one example of an adherent cell in the human body?