Question
In: Statistics and Probability
A type of tomato seed has a germination rate of 91%. A random sample of 160...
A type of tomato seed has a germination rate of 91%. A random sample of 160 of these tomato seeds is selected. What is the probability that more than 85% of this sample will germinate?
a) 0.8023
b) 0.9834
c) 0.0040
d) 0.9960
Solutions
orchestra answered 1 year agoRelated Solutions
To determine the possible effect of a chemical treatment on the rate of seed germination, 100...
To determine the possible effect of a chemical
treatment on the rate of seed germination, 100 chemically treated
seeds and 150 untreated seeds were sown. It was found that 88 of
the chemically treated seeds and 126 of the untreated seeds
germinated. Is there a difference in the proportions? Does the
chemical trim in effect seed germination?
Write an introduction on "how vinegar and water solution affect the rate of seed germination". the...
Write an introduction on "how vinegar and water solution affect
the rate of seed germination".
the introduction should include :
1 - Relevant background information
2 - A clear stated hypothesis with justification
3 - You must include at least three literature citations ( use
in-text citations and provide the full citations)
A biologist estimates that the chance of germination for a type of bean seed is 0.8. A student was given 10 seeds.
A biologist estimates that the chance of germination for a type of bean seed is 0.8. A student was given 10 seeds. Let Xbe the number of seeds germinated from 10 seeds.
a) Assuming that the germination of seeds is independent, explain why the distribution of Xis binomial.
b) What are the values of nand p?
c) What is the mean and standard deviation of the number of seeds that germinate?
d) What is the probability that all seeds...
A certain type of tomato seed germinates 90% of the time. A backyard farmer planted 25...
A certain type of tomato seed germinates 90% of the time. A
backyard farmer planted 25 seeds.
a) What is the probability that exactly 20 germinate? Carry
answer to the nearest ten-thousandths.
b) What is the probability that 20 or more germinate? Carry
answer to the nearest ten-thousandths.
c) What is the probability that 24 or fewer germinate? Carry
answer to the nearest ten-thousandths. d) What is the expected
number of seeds that germinate? Carry answer to the nearest
tenths.
it has been hypothesized that the average germination time for a certain seed is 4 days....
it has been hypothesized that the average germination time for a
certain seed is 4 days. an experiment involving 32 seeds revealed
an average germination time of 6 days. at the level of significance
0.05. is there evidence that average germination times has
increased? (standard deviation=0.80 days). P-value method
A simple random sample of germination times (in days) for 7 seeds of a new strain...
A simple random sample of germination times (in days) for 7
seeds of a new strain of snap beans has a sample mean of 15.57 and
standard deviation of 3.21.
(a) Determine a 99% confidence interval for the true mean
germination time for this strain.
(b) Choose a correct interpretation to your result in part
(a):
i. We can be 99% sure the sample average of 7 germination times
is in the interval calculated in part (a).
ii. We can...
A random sample of 91 observations produced a mean x̄ = 25.6 and a standard deviation...
A random sample of 91 observations produced a mean x̄ = 25.6 and
a standard deviation s = 2.6.
a. find a 95% confidence interval for μ.
b. find a 90% confidence interval for μ.
c. find a 99% confidence interval for μ.
A random sample of 91 observations produced a mean xequals25.7 and a standard deviation sequals2.6. a....
A random sample of 91 observations produced a mean xequals25.7
and a standard deviation sequals2.6.
a. Find a 95% confidence interval for mu. b. Find a 90%
confidence interval for mu. c. Find a 99% confidence interval for
mu.
A random sample of 160 car purchases are selected and categorized by age. The results are...
A random sample of 160 car purchases are selected and
categorized by age. The results are listed below. The age
distribution of drivers for the given categories is 18% for the
under 26 group, 39% for the 26-45 group, 31% for the 45-65 group,
and 12% for the group over 65. Find the P-value to test the claim
that all ages have purchase rates proportional to their driving
rates. Use α = 0.05
Age
under 26
26-45
45-65
over 65...
A random sample of 160 car purchases are selected and categorized by age. The results are...
A random sample of 160 car purchases are selected and
categorized by age. The results are listed below. The age
distribution of drivers for the given categories is 18% for the
under 26 group, 39% for the 26-45 group, 31% for the 45-65 group,
and 12% for the group over 65. Find the P-value to test the claim
that all ages have purchase rates proportional to their driving
rates. Use α = 0.05.
age
under 26
26-45
45-65
over 60...
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