Question
In: Math
Market research has indicated that customers are likely to bypass Roma tomatoes that weigh less than...
Market research has indicated that customers are likely to bypass Roma tomatoes that weigh less than 70 grams. A produce company produces Roma tomatoes that average 78.0 grams with a standard deviation of 5.2 grams.
Suppose there were 3 undersized tomatoes in the random sample of 20. What is the probability of getting at least 3 undersized tomatoes in a random sample of 20 if the company's claim is true? Do you believe the company's claim? Why or why not?
Solutions
milcah answered 8 months agoRelated Solutions
Market research has indicated that customers are likely to bypass Roma tomatoes that weigh less than...
Market research has indicated that customers are likely to
bypass Roma tomatoes that weigh less than
70 grams. A produce company produces Roma tomatoes that average
78.0 grams with a standard
deviation of 5.2 grams.
i) Assuming that the normal distribution is a reasonable model
for the weights of these
tomatoes, what proportion of Roma tomatoes are currently
undersize (less than 70g)?
ii) How much must a Roma tomato weigh to be among the heaviest
20%?
iii) The aim of...
Recent research has shown that creative people are more likely to cheat than their less creative...
Recent research has shown that creative people are more likely
to cheat than their less creative counterparts (Gino & Ariely,
2011). Participants in the study first completed creativity
assessment questionnaires and then returned to the lab several days
later for a series of tasks. One task was a multiple-choice general
knowledge test for which the participants circled their answers on
a test sheet. Afterward, they were asked to transfer their answers
to bubble sheets for computer scoring. However, the experimenter...
A horseshoe for horseshoe pitching should not weigh less than 2.625 pounds. In a sample of...
A horseshoe for horseshoe pitching should not weigh less than
2.625 pounds. In a sample of 28 horseshoes. the average weight is
2.48 pounds with a sample standard deviation of 0.3 pounds. We wish
to test H0: mu equals 2.625 against HA: mu space less than space
2.625 at alpha space equals space 0.05. You may assume the
distribution of weights is approximately normal.
a) Are the hypotheses being tested right-tailed, left-tailed, or
two-tailed?
b) Determine the value of the...
Females, on average, are shorter and weigh less than males. One of your friends, who is...
Females, on average, are shorter and weigh less than males. One
of your friends, who is a pre-med student, tells you that in
addition, females will weigh less for a given height. To test this
hypothesis, you collect height and weight of 29 female and 81 male
students at your university. A regression of the weight on a
constant, height, and a binary variable, which takes a value of one
for females and is zero otherwise, yields the following result:...
Females, on average, are shorter and weigh less than males. One of your friends, who is...
Females, on average, are shorter and weigh less than males. One
of your friends, who is a pre-med student, tells you that in
addition, females will weigh less for a given height. To test this
hypothesis, you collect height and weight of 29 female and 81 male
students at your university. A regression of the weight on a
constant, height, and a binary variable, which takes a value of one
for females and is zero otherwise, yields the following result:...
A researcher believes that women today weigh less than in previous years. To investigate this belief,...
A researcher believes that women today weigh less than in
previous years. To investigate this belief, she randomly samples 15
adult women and records their weights. The scores have a mean of
111 lbs. and a standard deviation of 13.4. A local census taken
several years ago shows the mean weight of adult women was 120
lbs.
What would you conclude using α =0.011tail? Make sure
to indicate your hypotheses, your critical value, your decision,
and your conclusion.
1. What...
Probability that a randomly selected student will weigh less than 140 lbs=0.2451 Probability that a randomly...
Probability that a randomly selected student will weigh less
than 140 lbs=0.2451
Probability that a randomly selected student will weigh more
than 190 lbs=0.1292
Probability that a randomly selected student will weigh between
150 & 180 lbs= 0.4057
Using the information above, assume that you are going
to randomly sample n=10 students.
1) What is the probability that the average of the selected
student will be less than 140 lbs?
2) What is the probability that the average of the...
A research service estimates that the mean annual consumption of fresh market tomatoes by a person...
A research service estimates that the mean annual consumption of
fresh market tomatoes by a person in the US is atleast 21 pounds.
You doubt this claim. A simple random sample of 23 people in the US
has a mean annual consumption of fresh market tomatoes of Xbar=19
pounds and a standard deviation of 4 pounds. Assume the pop. is
normally distributed. Construct the appropriate hypothesis and
conduct the test at the 1% level of significance. Based on the
Critical...
Do female college students tend to weigh more or less than male college students, on average?...
Do female college students tend to weigh more or less than male
college students, on average? Suppose that we use data from the
Student Data sheet to help us make a decision about this question.
We will assume that those who responded to the student data sheet
are representative of all college students and are a random sample.
Below are summary statistics from the student data sheet (rounded
to the nearest integer):
Sex?
N
Mean
St. Dev
Median
Minimum
Maximum...
A firm is producing goods in a market where the market price is less than the...
A firm is producing goods in a market where the market price is
less than the firm's average total cost but greater than its
average variable cost. At this point the firm should:
A.
shutdown production.
B.
increase price.
C.
continue to operate at a loss.
D.
decrease production.
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