A genetic experiment with peas resulted in one sample of offspring that consisted of 441green peas and 166 yellow peas.
a. Construct a 95% confidence interval to estimate of the percentage of yellow peas.
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b. It was expected that 25% of the offspring peas would be yellow. Given that the percentage of offspring yellow peas is not 25%, do the results contradict expectations?
In: Statistics and Probability
Suppose every 10 times you cast your line into a lake you successfully get 3 fish. Assume you cast your line 100 times.
a) What is the probability of successfully catching exactly two fish in this experiment?
b) Calculate or approximate the probability that the number of fish you catch at least 5.
In: Statistics and Probability
A genetic experiment with peas resulted in one sample of offspring that consisted of 404 green peas and 154 yellow peas.
a. Construct a 95% confidence interval to estimate of the percentage of yellow peas.
b. It was expected that 25% of the offspring peas would be yellow. Given that the percentage of offspring yellow peas is not 25%, do the results contradict expectations?
In: Statistics and Probability
3a. Many people believe that teenagers make emotional rather than rational economic decisions, particularly decisions about criminal behavior. That means that teens are not deterred by harsh penalties. What test does Levitt perform to determine if teens are deterred by harsher penalties? What natural experiment does he rely on? Be brief.
In: Economics
A genetic experiment with peas resulted in one sample of offspring that consisted of 416 green peas and 156 yellow peas.
a. Construct a 90% confidence interval to estimate of the percentage of yellow peas.
b. It was expected that 25% of the offspring peas would be yellow. Given that the percentage of offspring yellow peas is not 25%, do the results contradict expectations?
In: Math
Question #48. In a titration experiment, 50 mL of 0.1 M acetic acid (Ka = 1.75 x 10-5) was titrated with a 0.1 M NaOH (formal concentration) at 25 ºC. The pH of the solution at the equivalence point will be this: Please show work (1) 7.00; (2) 8.73; (3) 9.06; (4) None of the above
In: Chemistry
Describe the process of each step in the experiment (Fischer esterification/ Isopentyl acetate lab).
a. The reaction is done using a reflux condenser.
b. The reaction mixture is washed with water.
c. The reaction mixture is washed with aqueous sodium bicarbonate.
d. Anhydrous sodium sulfate is added to the top layer.
e. The final product is purified by distillation.
In: Chemistry
Design a randomized comparative experiments to test
whether fluoxetine is effective at reducing depression. the
participants are 100 people suffering from depression and the
response variable is the change on a standard questionnaire
measuring level of depression.
Describe how randomization will be used in the design
Describe how the placebo will be used
Describe how to make the experiment double blind
In: Advanced Math
Ammonium nitrate is one of the most important nitrogenous fertilizers. Its purity can be determined by reacting this ammonium nitrate with Ba(OH)2. During an experiment 0.4082 g fertilizer powder was just converted by adding 24.42 ml 0.1023 M Ba(OH)2 solution. How much % ammonium nitrate is in this fertilizer?
In: Chemistry
In Brown-Peterson Task lab, Do you or anyone you know like to study with the television or the radio on? Now that you have done this experiment, what do you think about this practice? Explain Discussion Question 1. Other than the explanation given in the question, what else could have explained the data?
In: Psychology