Selects asample of n= 20 pregnant rats and mixes alcoholwith their food for 2 weeks before the pups are born. one newborn pup is randomly selected frome ach subject's litter and the average with weightfor the n= 20 pups is recorded. it is known that the average birthweight for regular rats (without exposure to alcohol) is μ = 5.6 grams. a. what type of test would you use to test the hypothesis that alcohol consumption during pregnancy reduces birth weights? b. would you use a one-tailedor two-tailed test? c. what would be an appropriate measure of effect size to report?

Your answer would be:

n = 20 pups is recorded.

known that the average birthweight for regular rats (without exposure to alcohol) is μ = 5.6 grams.

sample of n= 20 pregnant rats and mixes alcohol with their food for 2 weeks before the pups are born.

One Newborn pup randomly selected from each litter.

A.). What type of test you would use, to test the hypothesis that, alcohol consumption during pregnancy reduces birth weights? Answer, There is one treatment group, pups of alcohol-fed rats, which is being compared to a known population of regular rats, so the most appropriate statistical test is the z-test.

B.). Would you use a one - tailed, or two - tailed test? Answer, The independent variable is the alcohol condition whether, or not, / the pup’s mother received alcohol while pregnant; The dependent variable is the birth weight

C.). What would be an appropriate measure of effective, size to report?Answer, The scale of measurement for the independent variable is nominal. The scale of the dependent variable (birth weight) is ratio; effective size would be measured by Cohen's d, or r2.

Hope that helps : ) zx, Because, there is only one sample; and, it is compared to all the previous patients,/population. The σ, is given.

transcription is a process in which information is rewritten. it is something our cells must do, in a more specialized and narrowly defined way. in biology, transcription is the process of copying out the dna sequence of a gene in the similar alphabet of rna. it needs to happen in the nucleus because that's where the dna is. dna is always inside the nucleus unless the cell is dividing.

transcription is the first step in gene expression, which involves copying a gene's dna sequence to make an rna molecule. transcription is performed by rna polymerases. it has three stages: initiation, elongation, and termination. rna molecules must be processed after transcription in eukaryotes.

explanation:

long version:

the protein synthesis consists two processes which are, transcription and translation. transcription takes place in the nucleus. it uses dna as a template to make an rna molecule. rna then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs. transcription is the first part of the central dogma of molecular biology: dna → rna. it is the transfer of genetic instructions in dna to messenger rna (mrna). during transcription, a strand of mrna is made that is complementary to a strand of dna.  

these three stages are:

  initiation: in which   is the beginning of transcription.occuring when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

    elongation: in which is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

    termination: in which is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .