## Answers

Solution :

Mean d=16.4

Standard deviation =Sd=14.183

Sample size n=10

Let _{1} be the mean score after the test and

let _{2} be the mean score before the test.

Hence, represents the improvement of score after taking the test.

Hence, the Null Hypothesis: H_{0}: the difference between the scores after taking the test and before taking the test is equal to 15 marks.

Alternate Hypothesis:H_{1} : the difference between the scores after taking the test and before taking the test is more than 15 marks.

i.e.

H_{0} :

H_{1} :

Test statistic = (16.4-15)/(14. 183/sq(10)) =0.312

Degrees of freedom df= n-1=9

Significance level =0.01

P value = 0.3811

Please like if it helps me please please

Thank you so much

We were unable to transcribe this image

We were unable to transcribe this image

211 Inl Pn

P11 = M1 H2 = 15

15 12 111 = P11

.
#### Similar Solved Questions

1 answer

##### $ millions May 31, 2015 May 31, 2014 Operating assets $56,535 $51,447 Nonoperating assets 54,368 38,819...

$ millions May 31, 2015 May 31, 2014 Operating assets $56,535 $51,447 Nonoperating assets 54,368 38,819 Total assets 110,903 90,266 Operating liabilities 19,847 18,722 Nonoperating liabilities 41,958 24,097 Total liabilities 61,805 42,819 Total Oracle stockholders' equity 48,663 46,878 Total rev...

1 answer

##### On a day when a thunderstorm is brewing. A car with a rectangular size of 6.00...

on a day when a thunderstorm is brewing. A car with a rectangular size of 6.00 m by 3.00 m is traveling along a dty gravel roadmay sloping downward at 23.1,Determine the electric fux through the bottom of the car N myc...

1 answer

##### 5. A feedback current amplifier is shown below. Assume identical devices: Vi-0.5 V and Va- 10 V. Both are sized to operate at Vov 0.2 V when I 0.2 mA -0.2 mA 0: 0 R2 3.5kD 3.5เก (a) Find gm and r...

5. A feedback current amplifier is shown below. Assume identical devices: Vi-0.5 V and Va- 10 V. Both are sized to operate at Vov 0.2 V when I 0.2 mA -0.2 mA 0: 0 R2 3.5kD 3.5เก (a) Find gm and ro for Qi and Q2 (b) Find the "A" circuit and values Ri, A, and Ro 5. A feedback curr...

1 answer

##### How did the Greeks prove that the Earth is round?

How did the Greeks prove that the Earth is round?...

1 answer

##### 4. The future earnings, dividends, and common stock price of Barstool Inc. are expected to grow...

4. The future earnings, dividends, and common stock price of Barstool Inc. are expected to grow 2% per year. Barstool’s common stock currently sells for $18.00 per share. Its last dividend was $1.50 and it will pay $1.53 dividend at the end of the current year. a. Using the DCF approach, what...

1 answer

##### The specific heat of a certain type of metal is 0.128 J/(g⋅∘C). What is the final...

The specific heat of a certain type of metal is 0.128 J/(g⋅∘C). What is the final temperature if 305 J of heat is added to 92.9 g of this metal, initially at 20.0 ∘C? ?final=_____C...

1 answer

##### Consider the following information about three stocks: State of Economy Probability of State Rate of Return...

Consider the following information about three stocks: State of Economy Probability of State Rate of Return if State Occurs Stock A Stock B 0.24 0.36 0.17 0.13 0.00 -0.28 Boom Normal Bust 0.35 0.50 0.15 Stock C 0.55 0.09 -0.45 a. What is the expected return of Stock A? The standard deviation? (6 poi...

1 answer

##### Top 13. The concept Topic: 15. The Concept ) and Cindicator point stachiometre point 9) Which...

Top 13. The concept Topic: 15. The Concept ) and Cindicator point stachiometre point 9) Which of the following express an exponential scale7 А) ан B) DH c) H B) pH. E) none of the above 10) What is the term for the product of an acid-base reaction in addition to water?...

1 answer

##### Adamantine Architectonics. Adamantine Architectonics consists of a U.S. parent and wholly owned subsidiaries in Malaysia (A-Malaysia)...

Adamantine Architectonics. Adamantine Architectonics consists of a U.S. parent and wholly owned subsidiaries in Malaysia (A-Malaysia) and Mexico (A-Mexico). Selected portions of their non-consolidated balance sheets, translated into U.S. dollars, are shown in the p...

1 answer

##### How do you find #lim sqrtt(sqrt(t+2)-sqrt(t+1))# as #t->oo#?

How do you find #lim sqrtt(sqrt(t+2)-sqrt(t+1))# as #t->oo#?...

1 answer

##### 4. A periodic signal x (t) is represented by a trigonometrie Fourier series X(t) = 8...

4. A periodic signal x (t) is represented by a trigonometrie Fourier series X(t) = 8 + 4 cos (2t + 60°) + 2sin (3t+30°) - cos (4t + 150°) = 0 * +30°) - cos (4t+150°) = 3 +4 Cos(216)+2 Cart ( 6) Col413 (a) Sketch the trigonometric Fourier series spectra (both magnitude and phase)....

1 answer

##### A pair of helical gears is used with the following properties: 14.5 degree normal pressure angle,...

A pair of helical gears is used with the following properties: 14.5 degree normal pressure angle, 45 degree helix angle, diametral pitch of 8 teeth/in, 1.5-in face width, and normal diametral pitch of 11.31 teeth/in. The pinion has 12 teeth and a 1.5in pitch diameter, and the gear has 32 teeth and a...

1 answer

##### Due in 3 hours, 17 minutes. Due Thu 05/28/ZUZU 1 Show Intro/Inst A ball is thrown...

Due in 3 hours, 17 minutes. Due Thu 05/28/ZUZU 1 Show Intro/Inst A ball is thrown into the air by a baby alien on a planet in the system of Alpha Centauri with a velocity of 38 fs. Its height in feet after seconds is given by y = 38 - 21. a) Find the average velocity over the time interval (3, 3+hwh...

1 answer

##### A) Given the joint pdf of the continuous RVs X and Y:fxy(x, y) = c for...

a) Given the joint pdf of the continuous RVs X and Y:fxy(x, y) = c for the region {0 sxs y, 0 sy s 1} and zero elsewhere.Where "c" is a constant. Determine if the RV X and Y are independent. (30 Marks)...

1 answer

##### 3. For the sequence AS compute a real number p such that lim an 7 Indicate...

3. For the sequence AS compute a real number p such that lim an 7 Indicate where you use any standard limits in your working....

1 answer

##### Nala has a inspiratory capacity of 3600 mL. Their vital capacity is 5000 ml. What is...

Nala has a inspiratory capacity of 3600 mL. Their vital capacity is 5000 ml. What is their expiratory reserve volume? 1400 ml 8600 L 8600 mL 1400L...

1 answer

##### Which would yield propylamine? Two of the above All of the above Select the reagent from...

Which would yield propylamine? Two of the above All of the above Select the reagent from the list below that could be the basis of a simple chemical test that would distinguish between each of the following: Cold dilute NaHCO_3 Cold dilute HCl NaNO_2, HC1, 5degreeC, then 2-naphthol C_6H_5SO_2Cl, OH-...