A medical researcher believes that a drug changes the body's temperature. Seven test subjects are randomly selected and the body temperature of each is measured. The subjects are then given the drug, and after 30 minutes, the body temperature of each is measured again. The results are listed in the table below. Is there enough evidence to conclude that the drug changes the body's temperature?

Let d=(body temperature after taking drug)−(body temperature before taking drug)d=(body temperature after taking drug)−(body temperature before taking drug). Use a significance level of α=0.02 for the test. Assume that the body temperatures are normally distributed for the population of people both before and after taking the drug.

Step 1 of 5: State the null and alternative hypotheses for the test.

Step 2 of 5:Find the value of the standard deviation of the paired differences. Round your answer to one decimal place.

Step 3 of 5:Compute the value of the test statistic. Round your answer to three decimal places

Step 4 of 5:Determine the decision rule for rejecting the null hypothesis H 0   . Round the numerical portion of your answer to three decimal places.

Step 5 of 5: Make the decision for the hypothesis test. (Fail to reject or reject null)

Please state the step number next to the answer given, thank you!

A medical researcher believes that a drug changes the body's temperature. Seven test subjects are randomly selected and the body temperature of each is measured. The subjects are then given the drug, and after 30 minutes, the body temperature of each is measured again. The results are listed in the table below. Is there enough evidence to conclude that the drug changes the body's temperature?

Let d=(body temperature before taking drug)−(body temperature after taking drug)d=(body temperature before taking drug)−(body temperature after taking drug). Use a significance level of α=0.05 for the test. Assume that the body temperatures are normally distributed for the population of people both before and after taking the drug.

Step 1 of 5: State the null and alternative hypotheses for the test.
Step 2 of 5: Find the value of the standard deviation of the paired differences. Round your answer to two decimal places.
Step 3 of 5: Compute the value of the test statistic. Round your answer to three decimal places.
Step 4 of 5: Determine the decision rule for rejecting the null hypothesis H0. Round the numerical portion of your answer to three decimal places.
Step 5 of 5: Make the decision for the hypothesis test. (Reject or Fail to Reject)

A giant "egg" explodes as part of a fireworks display. The egg is at rest before the explosion, and after the explosion, it breaks into two pieces, with piece B moving in the positive x direction. The masses of both pieces are indicated in (Figure 1), shown traveling in opposite directions.

a)What is the magnitude of the momentum |p⃗ A,i| of piece A before the explosion?

b)During the explosion, is the magnitude of the force of piece A on piece B greater than, less than, or equal to the magnitude of the force of piece B on piece A?

c)The component of the momentum of piece B, pBx,f, is measured to be +500 kg⋅m/s after the explosion. Find the component of the momentum pAx,f of piece A after the explosion.

Suppose you know that SERVER will not respond 15% of the times during heavy loaded hours (usually between 22:00-24:00).

a. What is the probability that you managed to access at your fifth trial to upload a quiz exam?(use 5 digits after decimal point)Answer

b. Given that you couldn’t access to XXX in your second attempt, what is the probability that you will access before your fifth attempt?(use 3 digits after decimal point)Answer

c. What is the probability that you accessed second time before your fourth attempt? (use 3 digits after decimal point)Answer

Please do the math by hand, do not use a program, I need to see the procedure, the answer itself is less important.

Comparison of peak expiratory flow rate (PEFR) before and after a walk on a cold winter's day for a random sample of 9 asthmatics. Use the following data to determine if the patients conditioned changed after a walk. Present your results and make some interpretations.

A red ball is thrown down with an initial speed of 1.3 m/s from a height of 27 meters above the ground. Then, 0.5 seconds after the red ball is thrown, a blue ball is thrown upward with an initial speed of 23.9 m/s, from a height of 0.7 meters above the ground. The force of gravity due to the earth results in the balls each having a constant downward acceleration of 9.81 m/s².

1)

What is the speed of the red ball right before it hits the ground?

m/s

Your submissions:

2)

How long does it take the red ball to reach the ground?

s

Your submissions:

3)

What is the maximum height the blue ball reaches?

m

Your submissions:

4)

What is the height of the blue ball 2 seconds after the red ball is thrown?

m

Your submissions:

5)

How long after the red ball is thrown are the two balls in the air at the same height?

s

Your submissions:

6)

Which statement is true regarding the blue ball?

After it is released and before it hits the ground, the blue ball is always moving faster than the red ball at any given time.

After it is released and before it hits the ground, the blue ball is sometimes moving faster than the red ball at any given time.

After it is released and before it hits the ground, the blue ball is never moving faster than the red ball at any given time.

Your submissions:

7)

Which statement is true about the red ball?

The acceleration is positive and it is speeding up

The acceleration is negative and it is speeding up

The acceleration is positive and it is slowing down

The acceleration is negative and it is slowing down

Here is the problem:

The Neon Lumber Company uses the periodic inventory method, and it has a policy of adjusting and closing its books only at year end. The following adjusted trial balance for the company was prepared after posting the normal adjusting entries on December 31, 2020:

The ending inventory balance at Dec. 31, 2020 was $280,000.

Required:

A. Following the example on page 242 of the textbook, prepare the income statement for the year ended December 31, 2020. Do your best to distinguish between selling expenses and administrative expenses. Both interest revenue and interest expense, of course, are non-operating items.

B. Using the example on page 249 of the textbook, prepare the statement of retained earnings for the year ended December. 31, 2020.

C. Using the example on page 250 and other locations in the textbook, prepare the balance sheet as of December. 31, 2020.

D. Prepare the closing entries as of December 31,2020

On January 2, 2019, Whistler Company purchased land for $450,000, from which it is estimated that 350,000 tons of ore could be extracted. It estimates that the present value of the cost necessary to restore the land is $59,000, after which it could be sold for $21,000.

During 2019, Whistler mined 73,000 tons and sold 51,000 tons. During 2020, Whistler mined 95,000 tons and sold 103,000 tons. At the beginning of 2021, Whistler spent an additional $90,000, which increased the reserves by 57,000 tons. In 2021, Whistler mined 131,000 tons and sold 124,000 tons. Whistler uses a FIFO cost flow assumption.

Required:

If required, round the depletion rate to the nearest cent and round the final answers to the nearest dollar.

1. Calculate the depletion included in the income statement and ending inventory for 2019, 2020, and 2021.

2. Complete the natural resources section of the balance sheet on December 31, 2019, 2020, and 2021, assuming that an accumulated depletion account is used.

3. Assume Whistler's discount rate was 9%. What is the balance in the asset retirement obligation at 2019, 2020, and 2021?

Marin Inc. has an executive stock option plan, details of which follow:

Marin uses an option-pricing model to value the stock options. When granted, the options are estimated to have a fair value of $8.50 each. This estimate remains unchanged during the vesting period.

Assuming that Marin has a December 31 year end, prepare the required journal entries as at the following dates. (Credit account titles are automatically indented when the amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter 0 for the amounts.)

Assuming that Marin has a December 31 year end, prepare the required journal entries as at the following dates. (Credit account titles are automatically indented when the amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter 0 for the amounts.)

Here is the problem:

The Neon Lumber Company uses the periodic inventory method, and it has a policy of adjusting and closing its books only at year end. The following adjusted trial balance for the company was prepared after posting the normal adjusting entries on December 31, 2020:

The ending inventory balance at Dec. 31, 2020 was $280,000.

Required:

A. Following the example on page 242 of the textbook, prepare the income statement for the year ended December 31, 2020. Do your best to distinguish between selling expenses and administrative expenses. Both interest revenue and interest expense, of course, are non-operating items.

B. Using the example on page 249 of the textbook, prepare the statement of retained earnings for the year ended December. 31, 2020.

C. Using the example on page 250 and other locations in the textbook, prepare the balance sheet as of December. 31, 2020.

D. Prepare the closing entries as of December 31,2020