practice set 5 | Biology homework help


University of Phoenix Material                      

 

Practice Set 5

 

Practice Set 5

 

 

1. This arrangement hasonlyoneparameter.Thecurveisskewedtotherightforsmalldfand

         becomessymmetricforlargedf.The entiredistributioncurveliestotherightofthevertical

         axis.Thedistributionassumes nonnegativevaluesonly

  1. t arrangement
  2. Normal arrangement
  3. Chi-square arrangement
  4. Linear return.

 

2. Find the esteem of x2 for 12 degrees of immunity and an area of .025 in the fair body of the chi-

        square arrangement incurvation. What is the esteem of chi-square? Round to three decimal places

 

3. Determine the esteem of x2 for 14 degrees of immunity and an area of .10 in the left body of the

         chi-square arrangement incurvation. What is the esteem of chi-square? Round to three decimal places

 

4. Determine the esteem of x2 for 23 degrees of immunity and an area of .990 in the left body of the

        chi-square arrangement incurvation. What is the esteem of chi-square? Round to three decimal places.

 

5. Α ____________ compares the observed frequencies from a multinomial trial with 

        expected frequencies superficial from a incontrovertible model or hypothetical arrangement. The ordeal

         evaluates how polite the observed frequencies fit the awaited frequencies.

A.    Goodness-of-fit ordeal

B.     Chi-square ordeal

C.     Linear return

 

6.  The __________ are the frequencies gained from the execution of a 

         multinomial trial. The awaited frequencies are the frequencies that we await to gain

          if the void theory is penny.

A.    Observed frequencies

B.     Expected frequencies

C.     Fluctuating frequencies

 

7. The awaited abundance of a class is consecrated by Ε = np where n is the pattern magnitude and p is the

         probability that an atom belongs to that class if the void theory is penny. The           

         ________ for a goodness–of–fit ordeal are k – 1, where k denotes the sum of feasible

         outcomes (or categories) for the trial.

A.    Number of observations

B.     Degrees of immunity

C.     Total population

 

8.      Thismodelincludesonlytwovariables,oneindependentandonedependent,iscalleda _____1______. The___2____istheonebeingexplained,andthe ___3___is theoneusedtoexplainthevariationinthedependentvariable.  Select the amend communication that would gain the judgment penny.

1. Select a communication from the schedule to gain this declaration penny.

2. Select a communication from the schedule to gain this declaration penny.

3. Select a communication from the schedule to gain this declaration penny.

A.    Linear model

B.     Qualitative wavering

C.     Multivariate decomposition of variance

D.    Independent wavering

E.     Simple return model

F.      One-way Decomposition of Variance

G.    Dependent wavering

H.    Quantitative wavering

 

9. A population postulates set performed the forthcoming advice.

N=460,  ∑x=3920,   ∑y=2650,  ∑xy=26,570,  ∑x2=48,530

Find the population return method. Round to three decimal places. Use the format as an model when submitting your equation 456.123 + 789.123x

10. The forthcoming advice is gained from a pattern postulates set.

n=12,  ∑x=66,  ∑y=588,  ∑xy=2244,  ∑x2=396

Find the estimated return method Use this format as an model when submitting your equation 123 – 45x