A village head wants to know the number of chickens in his area. So the Lurah conducted research on 36 families. The result turned out to be a total of 4.7 chickens per household with a standard deviation of 0.72. Test the hypothesis that states that the livestock owned by each household is at least 5 chickens, with = 1%?

Q: A particular fruit's weights are normally distributed, with a mean of 771 grams and a standard…

A: Solution: Let X be the weight of a particular fruit. From the given information, X follows normal…

Q: Lindsey and Karen began arguing about who did better on their tests, but they couldn't decide who…

A: Lindsey (Art History) 70.7 9.4 81.1 Karen (Social Studies) 61 9.6 70.7 a) Calculate the…

Q: Which of these two men had the height that was more​ extreme

A: Let , X : height of the tallest man and Y : height of the shortest man Since , the distribution of…

Q: what if the standard deviation was 30, instead of 60

A:

Q: On a standardized examination, Laura received a score of 83, which was exactly 2 standard deviations…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 639 grams and a standard…

A: The population mean and standard deviation are 639 grams and 36 grams respectively. It is given that…

Q: Doug has 1,000 bottle caps in his collection compared to Melissa's 2000 bottle caps. If the average…

A: Given,mean(μ)=1250standard deviation(σ)=500Doug bottle cap collection(X)=1000Melissa's bottle cap…

Q: Suppose you are told that a computer programmer in Portugal who makes $809.40 has a z-score of -0.50…

A: Solution: It is given that a computer programmer in Portugal who makes $809.40 has a z-score of…

Q: The results of a common standardized test used in psychology research is designed so that the…

A: Suppose that the random variable x defines the scores in psychology research.

Q: Sarah's score on the second exam was 34 for which the mean of all scores was 28 and the standard…

A:

Q: Michelle, a primary school teacher, administered an age-appropriate IQ test to all of her students…

A: Given information: The true population mean for the IQ test Michelle administered is 100, with a…

Q: On Bob's last history test, he had a score of 92.  Bob's z-score was -0.5, and the test's standard…

A: Solution -Given that Score in History test be X=92 Z- Score=-0.50 Standard deviation= 6 Find mean…

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: Given Information: Population mean (μ) = 19 inches;  Sample mean (x¯)= 18.6 inches; Sample standard…

Q: In Professor Krugman’s economics course, the correlation between the students’ total scores prior to…

A: a)   The equation of the line is y=143.2608+1.344x and it is obtained below:   From the given…

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: Givenaverage length of trout caught in Pyramid Lake is μ = 19 inches.Sample size = 45sample mean = x…

Q: A large chemistry course took their final exam. The mean was 75 with a standard deviation of 8. What…

A: Given Information:  Mean (u) = 75  Standard Deviation (s) = 8  To find: Exam scores that separates…

Q: The scores on two standardized tests are normally distributed. The first test had a mean of 54 and a…

A: It is given that the mean and the standard deviation of the first test are 54 and 10, respectively.

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: State the hypotheses. That is, there is no evidence to conclude that average length of a trout…

Q: On the final exam, Jenny’s class had an average of 62.4% with a standard deviation of 10.4. If the…

A: The number of students in the class is The average score of the class is The standard deviation is…

Q: Say you have 50 samples, each with 15 puppies. All have been rated in regards to cuteness. You are…

A: Given there are 50 samples with size of 15 each,One of the sample have mean = 8.4, standard…

Q: Marian found that the average height of female students in her psychology class was 63 inches with a…

A: According to the provided data,

Q: Suppose you received a score of 95 out of 100on exam 11 . The mean was 79and the standard deviation…

A:

Q: It takes an average of 9.9 minutes for blood to begin clotting after an injury. An EMT wants to see…

A: Given information: Sample mean(x¯)=9.2 minutes. Sample size(n)=50. Sample standard deviation(s)=3.79…

Q: If a student scored 77 points on a test where the mean score was 84.5 and the standard deviation was…

A: Given: Score of student(x)=77Population meanμ=84.5Population standard deviationσ=5.1

Q: A particular fruit's weights are normally distributed, with a mean of 419 grams and a standard…

A: Solution: Let X be the weight of a particular weight. From the given information, X follows normal…

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: We have given that  Sample size n= 51 , xbar= 18.6 , mu= 19  s= 3.1