Questions
A coach uses a new technique to train gymnasts. 7 gymnasts were randomly selected and their...

  1. A coach uses a new technique to train gymnasts. 7 gymnasts were randomly selected and their competition scores were recorded before and after the training. The results are shown below

Subject

A

B

C

D

E

F

G

Before

9.6

9.7

9.7

9.4

9.7

9.5

9.5

After

9.7

9.9

9.7

9.3

9.8

9.8

9.3

Using a 0.01 level of significance, test the claim that the training technique is effective in raising the gymnasts’ score.

Use the traditional method of hypothesis testing with critical value t= -3.143.

In: Statistics and Probability

Medical Microbiology Lab Report 36 DNase Test Name__________________________________ Date _________________ Draw your plate or take photos...

Medical Microbiology Lab Report 36

DNase Test

Name__________________________________ Date _________________

Draw your plate or take photos of your plate before and after the addition of HCl.

Before      After

S. aureus E. aerogenes S. aureus E. aerogenes

Interpretation and Questions:

Which organism secreted DNase?

Why would an organism’s ability to produce this enzyme be clinically significant?

S. aureus is a common component of the biota of the skin and nasal passages. What steps should be taken by the dialysis unit described in the case file to minimize nosocomial infection in its patients?

In: Biology

A rock sits at the bottom of a fish tank and the level of the water...

A rock sits at the bottom of a fish tank and the level of the water in the tank is noted. The rock is then put into an old fashioned ice cube tray (made from aluminium) and is floated on the top of the water. The level is again noted. Which of the following is true?

a). The water level is the same before and after.

b). The water level is higher before when rock is at the bottom of the fish tank.

c). The water level is higher after when the rock is floating in the tray.

d). The rock cannot float in a metal ice cube tray.

e). Cannot determine without more information.

In: Physics

The following are the weekly losses of work-hours due to accidents in 10 industrial plants before...

  • The following are the weekly losses of work-hours due to accidents in 10 industrial plants before and after a certain safety program were put into operation

Before

45

73

46

124

33

57

83

34

26

17

After

36

60

44

119

35

51

77

29

24

11

  1. Is the assumption that the difference in weekly losses of work-hours is normally distributed reasonable?
  2. Test whether the safety program is effective. Use α=0.05.

Find a 95% confidence interval on the difference in mean weekly losses of work-hours

In: Statistics and Probability

You are titrating 50 ml. of nitrous acid with sodium hydroxide (0.15 M). Equivalence is reached...

You are titrating 50 ml. of nitrous acid with sodium hydroxide (0.15 M). Equivalence is reached at 22.0 ml of NaOH delivered. Calculate the pH of the solution in the flask: - before the beginning of the titration - after the delivery of 5 ml. of titrant - at half$equivalence - at equivalence -after delivery of 23 ml. of titrant. -------------Give detail Show ALL WORK, UNITS and use ICE/reaction table and ML (no millimoles). Please be clear in how you get numbers for everything like the reaction table... I've asked this before and have gotten incomplete answers.

In: Chemistry

A student sits on a rotating stool holding two 3.2-kg objects. When his arms are extended...

A student sits on a rotating stool holding two 3.2-kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation and he rotates with an angular speed of 0.75 rad/s. The moment of inertia of the student plus stool is 3.0 kg · m2 and is assumed to be constant. The student then pulls in the objects horizontally to 0.36 m from the rotation axis.

(a) Find the new angular speed of the student. rad/s

(b) Find the kinetic energy of the student before and after the objects are pulled in. before & after (J)

In: Physics

How can i bubble sort a sentence in a char array in c++ This is the...

How can i bubble sort a sentence in a char array in c++

This is the prototype of the function:

char* sort(char string[], int numOfWords, int lengthOfWord);

This is the testing code in the main file:

char words[] = "CAT FAT BAT HAT RAT";
printf("Before sort: t%s\n";words);
char result = sort(words; 5; 3);
printf("After sort : t%s\n"; result);

Expected output:

Before sort: CAT FAT BAT HAT RAT
After sort: BAT CAT FAT HAT RAT

In: Computer Science

Sarah (single) is a 50 percent owner in Beehive LLC (taxed as a partnership). Sarah does...

Sarah (single) is a 50 percent owner in Beehive LLC (taxed as a partnership). Sarah does not do any work for Beehive. Beehive LLC. reported $600,000 of taxable business income for the year (2020). Before considering her 50 percent business income allocation from Beehive and the self-employment tax deduction (if any), Sarah’s adjusted gross income is $150,000 (all employee salary). Answer the following questions for Sarah.

What is Sarah’s net investment income tax liability (assume no investment expenses)?

In: Accounting

1.Please list and discuss what happens to the Supply and Demand forces in the market for...

1.Please list and discuss what happens to the Supply and Demand forces in the market for rental housing in a typical, "popular" U.S. city (metro area) over a typical twelve month period (before March 2020)?

2. what happens to Demand? Why?

3. What happens to Supply? Why?

4What happens to price and quantity as a result over this one year time frame? Why?

5.In theory, what happens to the price and quantity of rental housing over a typical ten year period?

In: Economics

Question 14) Before the holy month of Ramadan in Arab countries, people used to renew the...

Question 14) Before the holy month of Ramadan in Arab countries, people used to renew the dining rooms furniture. Therefore, Malak’s Furniture store purchased especially decorated Dining Rooms on 1st of February 2020. Due to COVID-19 breakout and the quarantine imposed on people, Malak expect that the Special Dining Rooms will not be sold for Ramadan that forced the company to decrease the prices in order to attract customers. However, sales are less than expectation.

Analyze the above case based on the IFRS requirements for IAS 36 “Impairment of Assets”

In: Accounting