a. The mean of this distribution is b. The standard deviation is c. The probability that the the child will be older than 5 years old?

Q: Construct the confidence interval for the population mean u. c=0.98, x = 7.8, 0 =0.5, and n = 53 A 9...

A: Construct a 98% confidence interval for u is (?,? )

Q: A normal distribution has a mean of 37 and a standard deviation of 3. Find the probability that a ra...

A: Obtain the probability that a randomly selected X-value lies between interval 34 and 40. The probabi...

Q: Mrs. Paul wants to test that claim that, on average, her students average mark is 85. She pulls the ...

A: Given that, Mrs. Paul wants to test that claim that, on average, her students average mark is 85. Sh...

Q: Simple Regression Sales Revenue Year Product Price (P) (millions of pesos) 1 1.20 0.95 2 1.50 0.93 3...

A:    

Q: P(-1.92 < z < 1.05)

A: here use normal distribution 

Q: The National Weather Service claimed that the average amount of snow in lowa is 11.52 inches. 10 cit...

A:

Q: In a study of 420,112 cell phone users, 127 subjects developed cancer of the brain or nervous system...

A: Given data  x= 127  n =420112 p= 0.00034 α= 0.001

Q: P(-9 < x< 16) = 0.4268, find the value of the mean

A: We have given that P(-9 &lt; x &lt; 16) = 0.4268

Q: 6. Show that 1 s2 = TE2-1(Xi – x)² is unbiased estimator of the population variance o?

A: Show that S^2 is unbiased estimator of population variance

Q: A random sample of 64 automobiles traveling on a section of an interstate showed an average speed of...

A: Solution-: Given: x¯=65,n=64,σ=13.5,c=0.865 We find, The 86.5% C.I. for the μ (in mph)=?

Q: Example 4. Out of total number of 2,807 women, who were interviewed for employment in a rextile fact...

A:

Q: T18=0-98, r13=0•44, and r23=0•54 Calculate the partial correlation coefficient between first and the...

A:

Q: The probability of a single engine failing on a jet is 1/14000. Use this probability to determine th...

A: Given: The probability of a single engine failing on a jet is 1/14000 = P The probability of a singl...

Q: Below is a graph of a normal distribution with mean u=-1 and standard deviation o = 3. T from this d...

A:

Q: Example 8. Ten coins were tossed together and the number of the resulting from them were observed. T...

A:

Q: Trevor is interested in purchasing the local hardware or sporting good store in the small town of Do...

A: Binomial distribution is given by  

Q: a certain game involves tossing 3 fair couns and it pays 22 cents for 3 heads, 9 cents for 2 heads a...

A:

Q: (a) Compute the length of the middle 95% of all the crab leg lengths.

A: Here AS per policy  I HAVE CALCULATED 3 SUBPARTS KINDLY REPOST FOR REMAINING PARTS  Suppose we are e...

Q: Production data in 2021 shows that a machine cuts 99% of bolts with acceptable lengths. Calculate th...

A:

Q: 20. Let A be an event of a sample space S. Define a random variable on S via 1 ifse A, 14(s)= otherw...

A: An event A is defined on sample space S by, 1A(s)=1if s∈A0otherwise.In the same way, B be defined on...

Q: Select the best explanation for the image below: Select one: O a The collections of marks can be con...

A: The collection of marks is neither accurate not precise

Q: Two professors at a local college developed a new teaching curriculum designed to increase students'...

A:

Q: Ten students of B. Com., class of a college have obtained the following marks in statistics out of 1...

A:

Q: We have data on 2323 randomly selected households consisting of three persons in 2013. Let ENTERT de...

A: It is given that the value of SST is 8691035 and the value of SSE is 7711432.

Q: 70 85 89 76 25 54 30 87

A: We have given data are 70,85,89,62,65,76,25,54,56,41,7,30,87,58,58,56,13,100,64,26,26,64,10,44,91

Q: The value of Q is:

A: here use given grouped data frequency distribution of speed  

Q: The average American consumes 97 liters of alcohol per year. Does the average college student consum...

A:

Q: What is the test statistic What is the pvalue Star conclusion for test Construct a confidence interv...

A:    

Q: 4. Five dice (6 sided & fair) are tossed on a table. Calculate the probability of getting 4 ones. Re...

A:

Q: 3. This data set: 14, 8, 1, 7, 8, 4, 5, 13, 5, 9 has sample mean 7.4 and sample standard deviation 3...

A: Given that,  Data set: 14,8,1,7,8,4,5,13,5,9 Sample mean=7.4 Sample standard deviation=3.978 We have...

Q: 3. A Catholic couple has 5 children. Assuming that birth of a boy or a girl is equally likely, calcu...

A:

Q: Ten students of B. Com., class of a college have obtained the following marks in statistics out of 1...

A: Here use given data for  standard deviation   

Q: The following table gives the score obtained by 11 students in English and Tamil Translation. Find t...

A:

Q: Problem # 1: Two machines are used for filling plastic bottles with a net volume of 16.0 ounces. The...

A:

Q: High power experimental engines are being developed by the Stevens Motor Company for use in its new ...

A: The random variable maximum horse power follows normal distribution. We have to test whether the ave...

Q: class, test, the mean is 85 and the standard deviation was 7.5. grades. conciuded Grade Upper 5% 10%...

A: Solution: Given that:  μ= 85 Population mean of the testσ= 7.5  Population standard deviation of the...

Q: The average American consumes 89 liters of alcohol per year. Does the average college student consum...

A: From the provided information, Sample size (n) = 15 Sample mean (x̄) = 87.3 Sample standard deviatio...

Q: Assume that a procedure yields a binomial distribution with n trials and the probability of success ...

A:  

Q: Estimate the number of students who get more than 48 but not more than 50 marks from the following d...

A:

Q: Let the random variable X denote monthly rainfall in Indiana in inches. X-N(3.38, 2.46). What is the...

A:

Q: (a) What is the probability that a randomly chosen 10 year old is shorter than 48 inches? (please ro...

A: Here Given Heights of 10 year old is normally distributed with  Mean=μ=55 Inches S.D=σ=6 Inches HERE...

Q: Use the Minitab display to test the claims. Use the α=0.05 significance level. The sample data are S...

A:

Q: A statistics practitioner took a random sample of 43 observations from a population whose standard d...

A: We have given that,  sample mean (x̄) = 109, standard deviation (σ) = 30 and sample size (n) = 43

Q: Consider the grouped frequency distribution below, in which the speed (in km/hr) of 40 cars are pres...

A: We want to tell you which one is the correct choice.

Q: The mean number of eggs per person eaten in the United States is 244. Do college students eat a diff...

A: It is given that Sample size n = 60 Sample mean = 255 Sample SD s = 64.4 Note : According to our gui...

Q: 1 dx (2x + 1)'

A:

Q: A can hit a target three times in five shots, B two times in tive shots and C three times in four sh...

A:

Q: Belng Click the icon to view the data tables. (Round to three decimal places as needed.) Approximate...

A: We have given that the probability distribution of the random variable X represents the number of hi...

Q: The College of Graduate Studies at MNSU claims that more than 60% of undergraduate students at this ...

A:

Q: A simple random sample of sizen=200 drivers were asked if they drive a car manufactured in a certain...

A: It is given that Sample size n = 200 Number of drivers drive car made in the country, X = 119 Level ...