One measure of knowledge of a language is the size of someone's vocabulary. Certain digital language learning platforms focus heavily on building vocabulary. Suppose we consider two such learning platforms, Platform 1 and Platform 2, and compare their ability to improve vocabulary. Platform 1 markets itself as the best program for learning vocabulary, whereas Platform 2 markets itself as more a rounded program for learning language. Random samples of user data were taken from the two platforms. The data are summarized below where vocabulary size is measured in total words known. n Platform 1 20 Platform 2 28 x-bar 2800 2200 S 600 560 Construct a 99% confidence interval for the difference 1 - 1₂.

Q: what are parts d and e?

A: We are given an equation for the line of best fit as,

Q: According to your conclusion above what type of error can occur?

A: Type I error (α): The probability of rejecting the null hypothesis when it is actually true. Type II…

Q: Help with this problem...

A:

Q: dy dx 키 8

A: dydx=-yxby variable seperable methoddyy=-dxx

Q: 9. (w) hours plus whole minutes, it will take to fill a nearby, rectangular pool with dimensions 12…

A:

Q: Hello can you show me the work for part A?

A: As you instructed we can solve part a as below

Q: 0/1 3. A youth group and their leaders visited Linville Caverns in Marion, NC. Two adults and 5…

A:

Q: (b) 120° r = 3. 66

A:

Q: One questions with "parts"

A: Solution: Given information: n= 253  Sample size  x= 111 succesess  p= 0.50 Population proportion…

Q: Problem: "Mr. Woo drove 180 miles. He left at 3 pm and arrived at his destination at 6 pm. He used 9…

A: Given: Distance driven = 180 miles. Gas used = 9 gallons.

Q: How do I introduce properties of transversals?

A: Refer to the question,  A transverse line is a line intersecting two or more given lines at…

Q: For problems 3-6 assume the following. P(ANB) =0.12 4) Р(А|B)- P(A) = 0.26 3) P(B|A) = P(B) = 0.42…

A:

Q: Question 10 fou go to the procery store and buy a gallon of milk for $3.59. two avocados for $1.19…

A: Given: You buy a gallon of milk for $3.59 Two avocados for $1.19 for each And 3.12 pounds of chicken…

Q: i need solution for d, e, f, g

A: With reference to the given data The regression equation with the independent variable height of…

Q: Answer seems to be wrong

A: Given function:- 8x2-y2-7z=362

Q: I need help with parts a-c

A:

Q: Can you write it properly? It is not understandable.

A:

Q: Can someone complete question 2

A: The given function is:f(x,y)=(x+5)eyGiven point is:P=(3, 0)

Q: Please may you help me with question 5 and 6a and b

A: To prove elements on the main diagonal of a skew-symmetric matrix are all zero.Note- As per company…

Q: An office building which consists of 10 floors with an area of 300m for each floor and a restaurant…

A: Given data: Number of floors=11 ( including roof)=N Area of 10 floors =300 m2 Area of roof=200 m2…

Q: sec 90

A:

Q: What about Question #8?

A: South Salinas       North Salinas Price Square Feet Bedrooms Price Square Feet Bedrooms 605…

Q: d. Calculate the probability of four or more students being in line or being served. (Round your…

A: The information provided in the question are as follows : Arrival rate (λ) = 4 per hour Service time…

Q: number 22 part a b and c show all the work please

A: Given differential equation: 2y'-y=et3,y0=a Answer for sub question a: First draw a direction field…

Q: Can you explan it better?  I do not understand.

A: A repeated - measures and an independent - measures study both produce a t statistic with df=20. How…