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
Mnenie [13.5K]
3 years ago
7

The U.S. Federal Seed Act establishes germination rates for various fruit and vegetable seeds. Watermelon seeds are to meet a 70

% germination standard. A skeptical gardener who has not had very good luck planting watermelons believes that the seed company he purchases seeds from is not adhering to the 70% federal mandate. Once a week for 12 weeks, he purchases a pack of 10 watermelon seeds to act as his sample. He plants the seeds in a greenhouse with good soil to maintain a consistent temperature and watering routine. He finds that the germination rate for the company's watermelon seeds is 55%. Is this convincing evidence that the proportion of watermelon seeds that germinate is less than 70%
Mathematics
1 answer:
babymother [125]3 years ago
7 0

Answer:

Following are the responses to the given question:

Step-by-step explanation:

Level of Significance,\alpha =    0.05

Sample Size, n =    120          

Sample Proportion,   \hat{P} = 0.600      

z -value =   Z_{\frac{\alpha}{2}} =  1.960  \ \  [excel formula =NORMSINV(\frac{\alpha}{2})]

Standard ErrorSE = \sqrt{\frac{\hat{p}(1-\hat{p})}{n}} =    0.0447        

margin of error E = Z\times SE =    1.960   \times   0.0447   =   0.0877

When 95\% Confidence Interval              

Interval Lower Limit= \hat{p} - E =    0.600   -   0.0877   =   0.5123

Interval Upper Limit =\hat{p}+ E =   0.600   +   0.0877   =   0.6877

You might be interested in
U.s. air has a net income before tax 60,000. it is expected 45% of net income will go to federal and state taxes. how much will
muminat
60,000 times .45= 27000
60,000-27,000= 33,000
US air will have $30,000 left after federal and state taxes
3 0
3 years ago
HELP ASAP FOR BRAINLIEST!!
Diano4ka-milaya [45]

Answer:

Not equivalent

Step-by-step explanation:

The three would also be distributed to z making the correct equivalent expression 15+3z

8 0
3 years ago
-3 + 4x = 41<br> What's x
marusya05 [52]
Move the -3 to the other side which makes it 41 + 3 = 44

So now the equation looks like 4x=44

Now divide 44 by 4, equals 11

x=11
3 0
3 years ago
Read 2 more answers
Please assist me with these problems​
blondinia [14]

Answer:

The function of f(x) is 20 for the middle problem idk the others

Step-by-step explanation:

3 0
3 years ago
Mrs Thomas played a game. Her score changed the same amount each round. After 3 rounds, her score had changed by -18 points. How
lisabon 2012 [21]

Answer: -6

Step-by-step explanation: It changed -6 each round because -6x3=-18.\

Hope this helped!

5 0
3 years ago
Other questions:
  • Posting a screenshot. please help.
    6·1 answer
  • consuder the following polynomial equation x(x-3)(x+6)(x-7)=0. which of the following are zeros of the equation? select all that
    5·1 answer
  • A rug covers 79 square feet of the floor. What is the approximate length of one side of the rug
    14·1 answer
  • Find a polar equation for the curve represented by the given cartesian equation. X2 + y2 = 2cx
    12·1 answer
  • Does anybody understand 1st grade because I don’t
    12·2 answers
  • Use forward and backward difference approximations of O(h) and a centered difference approximation of O(h2) to estimate the firs
    7·1 answer
  • What is the answer of 2/3-6/10
    15·2 answers
  • At a rugby match,the ratio of children to adults us 2:3. there are 80 children in the crowd. each adult ticket costs £8. each ch
    6·1 answer
  • Whats the measurement of an angle that cuts off 3/10 of a circle
    5·1 answer
  • RUAR 28. एकजना मानिसले अकित मूल्यमा 10% छुट दिई एउटा घडी बेच्दा रु. 3,000 नाफा गर्दछ । यदि उसले अकित कर 40 बुट दिएको भए रु. 3,00
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!