Given the above three sets of data, we want to compare the three seasons using the ANOVA. Answer the following questions:

1. Using proper notation, write the null and alternative hypothesis statements.

2. In the context of the problem posed, interpret the results of the test and make a conclusion about the hypotheses.

****You must be provide concise explanations in your solutions in order to receive credit****

2.   A researcher wants to determine whether children will learn concepts better with
positive examples alone or with both positive and negative ones. Twenty children are recruited to participate and ten are randomly assigned to each of the two experimental conditions. Their scores on the concept-formation task are given below (higher scores indicate better performance). Decide whether there is a difference between the two methods. Be sure to complete all 8 steps of the Hypothesis Testing procedure. Use an alpha level of .05.

       Positive Only       Positive & Negative

           8                       14
           10                       8
           7                       7
           12                       10
           6                       12
           9                       6
           10                       15
           11                       11
           6                       9
           13                       8

Iodine-131 is an isotope of iodine (Z = 53) used for the treatment of hyperthyroidism, as it is readily absorbed into the cells of the thyroid gland. With a half-life of 8 days, it decays into an excited Xenon-131 atom (Z = 54).

1.What type of radioactive decay occurs in this process?

a. alpha decay

b. electron capture

c. gamma decay

d. beta decay

2. The related isotope iodine-125 is used in brachytherapy. In what way does it differ from iodine-131?

a. The number of beta particles

b.The number of neutrons

c.The number of electrons

d.A different number of protons

3.Which of the following is a true statement regarding the atomic mass during the decay from iodine-131 to xenon-131?

a. We expect the mass has decreased because xenon-131 has one less proton

b. We expect the mass has decreased because xenon-131 has one more proton.

c. We expect the mass has increased because xenon-131 has an extra proton.

d. We expect the mass has increased because xenon-131 has one less proton

4. What percentage of an iodine-131 sample remains after 44 days?

a. 50%

b. 88%

c. 2.2%

d. 3.1%

5. The SI unit for activity (decays per second) is the Becquerel (Bq). A hospital receives a shipment of iodine-131 with an activity of 8 × 1010 Bq. After 16 days, there are several patients that need to be given doses of 1 × 109 Bq each. How many patients can be treated?

a. 10 patients

b. 20 patients

c. 40 patients

d. 80 patients

7- Compute the present value for the following: Future Value: 140987 Years: 26 Interest rate: 11 Provide answer with two decimals, i.e. 32.16)

8- Solve for the unknown number of years: (Use two decimals, i.e. 32.16) PV: 2,589 FV: 80,008 Rate:8% # Years:

9- Solve for the unknown number of years: (Use two decimals, i.e. 32.16) PV: 2,555 FV: 62,387 Rate:16% # Years:

10- Solve for the unknown number of years: (Use two decimals, i.e. 32.16) PV: 3,590 FV: 21,073

Manager T. C. Downs of Plum Engines, a producer of lawn mowers and leaf blowers, must develop an aggregate plan given the forecast for engine demand shown in the table. The department has a regular output capacity of 130 engines per month. Regular output has a cost of $60 per engine. The beginning inventory is zero engines. Overtime has a cost of $90 per engine.

4. Please name your driver program XXX_P04 where XXX are your initials. Given the array inputArray (doubles), write a method called swap which will swap any two contiguous (next to each other) elements. Swap will be passed two parameters, the index of the first element to be swapped and the array name. Write another method printArray that will print the array 5 elements to a line. PrintArray will be passed one parameter the array name. See the videos for help with this. The array elements are: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

Java Eclipse

Question 1:

Question 2:

Question 3:  

Match an appropriate correlation for given set of two variables.

1. Number of siblings & Gender Which one: (Chi-squared, point biserial correlation, spearman's rho, pearson's r, kendalls tau)

2. Math scores & Reading score Which one: (Chi-squared, point biserial correlation, spearman's rho, pearson's r, kendalls tau)

3. Birth order & Education level  Which one: (Chi-squared, point biserial correlation, spearman's rho, pearson's r, kendalls tau)

4. Job satisfaction & Annual income Which one: (Chi-squared, point biserial correlation, spearman's rho, pearson's r, kendalls tau)

3. Consider the following table

Step 1 of 8:

Calculate the sum of squares among treatments. Please round your answer to two decimal places.

Step 2 of 8:

Calculate the sum of squares of experimental error. Please round your answer to two decimal places.

Step 3 of 8:

Calculate the degrees of freedom of experimental error.

Step 4 of 8:

Calculate the F-value. Please round your answer to two decimal places.

Step 5 of 8:

What is the sum of squares of sample means about the grand mean? Please round your answer to two decimal places.

Step 6 of 8:

What is the variation of the individual measurements about their respective means? Please round your answer to two decimal places.

Step 7 of 8:

What is the critical value of F at the 0.01 level? Please round your answer to four decimal places, if necessary.

Step 8 of 8:

Is F significant at 0.01