Help Me PLEASE!!!!!!!

State the null hypothesis H0 and the alternative hypothesis Ha in each case. Be sure to identify the parameters that you use to

padilas [110]

Answer: (A)

$H_0:\mu=75\\H_a:\mu\neq75$

(B)

$H_0:\mu=24\ sec\\H_a:\mu>24\ sec$

(C)

$H_0:\mu=850\ ft^2\\H_a:\mu$

Step-by-step explanation:

Null hypothesis $(H_0)$ : It is a statement showing population parameters as per the objective of the study. It generally takes "≤,≥,=" signs.
Alternative hypothesis $(H_a)$ : It is also a statement describing population parameters as per the objective of the study. It generally takes ">, <, ≠" signs.

(A) Objective: Scores in second-year calculus are scaled so the average each year is equivalent to a 75 or not.

$H_0:\mu=75\\H_a:\mu\neq75$

(B) Objective: The mean time is 24 seconds or more for one particular maze.

$H_0:\mu=24\ sec\\H_a:\mu>24\ sec$

(C) Objective: The average square footage of one-bedroom apartments in a new student-housing development is advertised to be 850 square feet or smaller.

$H_0:\mu=850\ ft^2\\H_a:\mu$

7 0

3 years ago

Exchange rates help you to know ____.

Vika [28.1K]

Answer:

B

Step-by-step explanation:

how much your currency is worth in a different currency

hope this helps <3

3 0

2 years ago

Asap asap pls help no idea will mark brainliest !

blondinia [14]

Answer:

I think that the area is 165 km squared. Please forgive me if im wrong!!!

Step-by-step explanation:

4 0

2 years ago

How do you find slope, y- intercept, slope- intercept form, and point slope form for (-10,-17) (-8,-15.7)

krek1111 [17]

Answer:

-10=x1 -17=y1

-8=x2 -15.7=y2

formula:

y2 -y1

_____ =m

x2-x1

y1=m(x1)+b

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Underage drinking, Part I: Data collected by the Substance Abuse and Mental Health Services Administration (SAMSHA) suggests tha

dezoksy [38]

Answer:

a. Yes, there are 10 independent trials, each with exactly two possible outcomes, and a constant probability associated with each possible outcome.

b. The probability is 0.2029 or 20.29%

c. The probability is 0.2029 or 20.29%

d. The probability is 0.1671 or 16.71%

e. The probability is 0.9975 or 99.75%

Step-by-step explanation:

a. Yes, there are 10 independent trials, each with exactly two possible outcomes, and a constant probability associated with each possible outcome.

b. Let's use the binomial distribution table, this way:

Binomial distribution (n=10, p=0.697)

f(x) F(x) 1 - F(x)

x Pr[X = x] Pr[X ≤ x]

0 0.0000 0.0000

1 0.0002 0.0002

2 0.0016 0.0017

3 0.0095 0.0112

4 0.0384 0.0496

5 0.1059 0.1555

6 0.2029 0.3584

7 0.2668 0.6252

8 0.2301 0.8553

9 0.1176 0.9729

10 0.0271 1.0000

The probability is 0.2029 or 20.29%

c. If 69.7% of 18-20 years old consumed alcoholic beverages in 2008, therefore, 30.3% did not and the binomial distribution table is:

Binomial distribution (n=10, p=0.303)

f(x) F(x) 1 - F(x)

x Pr[X = x] Pr[X ≤ x]

0 0.0271 0.0271

1 0.1176 0.1447

2 0.2301 0.3748

3 0.2668 0.6416

4 0.2029 0.8445

5 0.1059 0.9504

6 0.0384 0.9888

7 0.0095 0.9983

8 0.0016 0.9998

9 0.0002 1.0000

10 0.0000 1.0000

The probability is 0.2029 or 20.29%

d. Let's use the binomial distribution table, this way:

Binomial distribution (n=5, p=0.697)

f(x) F(x) 1 - F(x)

x Pr[X = x] Pr[X ≤ x]

0 0.0026 0.0026

1 0.0294 0.0319

2 0.1351 0.1671

3 0.3109 0.4779

4 0.3576 0.8355

5 0.1645 1.0000

P(0) + P(1) + P (2) = 0.0026 + 0.0294 + 0.1351

The probability is 0.1671 or 16.71%

e. Using the same binomial distribution table we used in d. we have:

P(1) + P (2) + P(3) + P(4) + P (5) = 0.0294 + 0.1351 + 0.3109 + 0.3576 + 0.1645

The probability is 0.9975 or 99.75%

7 0

3 years ago