1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alex41 [277]
3 years ago
15

The plant-breeding department at a major university developed a new hybrid boysenberry plant called Stumptown Berry. Based on re

search data, the claim is made that from the time shoots are planted 90 days on average are required to obtain the first berry. A corporation that is interested in marketing the product tests 60 shoots by planting them and recording the number of days before each plant produces its first berry. The sample mean is 92.3 days. The corporation wants to know if the mean number of days is different from the 90 days claimed. What are the correct hypotheses?
Mathematics
1 answer:
MaRussiya [10]3 years ago
3 0

Answer:

\text{Null hypothesis}: H_0:\mu=90\\\\\text{Alternative Hypothesis}:\mu\neq 90

Step-by-step explanation:

Given claim : From the time shoots are planted 90 days on average are required to obtain the first berry.

. The sample mean is 92.3 days. The corporation wants to know if the mean number of days is different from the 90 days claimed.

As we know that the null hypotheses shows there is no statistical difference between the groups but the alternative hypothesis is opposite to it, it shows there is difference.

Thus , the correct hypotheses will be :-

\text{Null hypothesis}: H_0:\mu=90\\\\\text{Alternative Hypothesis}:\mu\neq 90

You might be interested in
Find the nonpermissable replacement for y in this expression y+9/1+7
Ugo [173]
 <span>y = -7 

You cannot divide by 0. If y = -7, the denominator would be 0.</span>
3 0
3 years ago
4.5, 9, 13.5, 18...
Sladkaya [172]

Answer:

a) Arithmetic

b) 22.5

c) 4.5

d) a_n = 4.5 + 4.5(n - 1)

e) a_15 = 67.5

Step-by-step explanation:

a) Subtract one term by the term right before it, and the difference will be the common difference.

9 - 4.5 = 4.5

13.5 - 9 = 4.5

18 - 13.5 = 4.5

Therefore, the common difference is 4.5.

b) Since the common difference is 4.5, add 4.5 to the 18 (which was the last value given). The result is 22.5.

c) We have already figured out that the common difference is 4.5.

d) The explicit formula would be a_n = a1 + d(n - 1). The first term is 4.5 and d is also 4.5, so the explicit formula is a_n = 4.5 + 4.5(n-1).

e) Plug 15 into our explicit formula for n. a_15 = 4.5 + 4.5(14). The result is 67.5.

5 0
3 years ago
Read 2 more answers
Solve the inequality x^2-4x-7&lt;0
ANEK [815]

Answer:

Inequality Form:

2 − √ 11 < x < 2 + √ 11

Interval Notation:

( 2 − √ 11 , 2 + √ 11 )

Step-by-step explanation:

Solve the inequality for  x  by finding  a ,  b , and  c  of the quadratic then applying the quadratic formula.

8 0
3 years ago
Consider a circle whose equation is x2 + y2 + 4x - 6y - 36 = 0. Which statements are true? Check all that apply.
kherson [118]

Answer: b & c

I got the answer right on my quiz

6 0
3 years ago
Read 2 more answers
A store has 7 red shirts, 15 black shirts, 13
AleksAgata [21]

Answer:First you have to add all of the shirts together, which gives you: 40

Since 15 of those are black, then you need to put those 15 over the total number of 40, making it 15/40.

Then you must simplify by the highest number that will go into both, and since that number is 5, it will then go into 15 three times and it will go into 40 eight times.

That leaves you with the answer of: 3/8

6 0
3 years ago
Other questions:
  • Find the area of trapezoid
    10·1 answer
  • Mr.Adams had 24 guests at his house for a party. Each guest brought one item. 1/3 of the guests brought drinks. 1/4 of the guest
    5·2 answers
  • Find the volume of the cylinder <br> A-16990<br> B-8491<br> C-4247<br> D-2369
    6·1 answer
  • Help me please someone
    13·1 answer
  • Two distinct planes __________ intersect in a pair of lines
    8·1 answer
  • 3х + 5 = 17<br>what is the answer to this problem​
    7·2 answers
  • Por que las matemáticas tienen letras ?????​
    6·1 answer
  • Can someone please solve these equations asap with step by step explanation you can also write an answer in the comments if u ar
    9·2 answers
  • Whats5666778877 x 81 + 1
    14·2 answers
  • Jen had fifty dollars in her wallet. Mom gave her some money. Now she has 100 dollars. How much money did her mom give her? Writ
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!