According to a Survey, households in the city X spend an average of $24 per week on their leisure activities. Suppose you are given a sample of 100 households and that the population variance is 36. a) What is the population standard deviation? What is the standard deviation of the sample average? b) What is the probability that the sample average spend more than $25? c) What is the probability that the sample average spend exactly $23?

Q: The variable Z is normally distributed with mean 0 and standard deviation 1. Find the values a and b...

A:

Q: Find the critical value zc necessary to form a confidence interval at the level of confidence shown ...

A:

Q: Table 3: Significant Influence between Management Capability of Administrators and Productivity of E...

A: The following data is given: Leadership skills   Productivity of employees     Beta t-value P-v...

Q: The accompanying dataset provides the closing prices for four stocks and the stock exchange over 12 ...

A: Given information: The time series data is given.

Q: Prove that for a random sample of size n, X, X2 X, taken from a finite population s - (, - i) Σ n i=...

A:

Q: There are two major tests of readiness for college, the ACT and the SAT. ACT scores are reported on ...

A:

Q: A certain four-cylinder combination lock has 45 numbers on it. To open it, you turn to a number on t...

A: Given that a certain four-cylinder combination lock has 45 numbers on it. To open it, you turn to a ...

Q: CASE: You want to determine the degree/strength of relationship between height and weight. Variable ...

A:

Q: A retail company has historically sold an average of 32 items per day. A local franchise is testing ...

A: Here is given that, n = 30 t-statistic is 13.69 Hypothesis is one tailed test.

Q: Define Non parametric test. Discuss the advantages and disadvantages.

A:

Q: Determine the following probabilities  a. For n=11 and pie=0.6, what is the P(x=9)? b. for n =6 an...

A: Note: Hi, thank you for the question. Since the distribution is not mentioned, the binomial distribu...

Q: As part of a study designed to compare hybrid and similarly equipped conventional vehicles, a group ...

A: For the given data using Anova: Two-Factor With Replication carry out the hypotheses test at alpha =...

Q: Suppose that the average number of Facebook friends that users have is normally distributed with a m...

A:

Q: Quantity Ordered From То Price per Roll 30 $215 31 60 $195 61 120 $175 121 and up $155 k on the data...

A: Quantity Ordered From  To Price per Roll 1 30 $215 31 60 $195 61 120 $175 121 and up $155 ...

Q: A radio shop sells, on an verage, 200 radios per day with a standard deviation of 50 radios After an...

A: Given:

Q: A researcher is interested in whether people who enjoy fine wine can actually tell the difference be...

A:

Q: The highway fuel economy of a 2016 Lexus RX 350 FWD 6-cylinder 3.5-L automatic 5-speed using premium...

A:

Q: To test the intelligence of 10th class boys and girls in a Higher Secondary School, a sample of 83 t...

A:

Q: Find the least value of r in a sample of 18 pairs of observations from a bivariate normal population...

A:

Q: According to a sample of college students, the average amount of sleep they get each night is 6.2 ho...

A:

Q: Suppose there are two consumers, A and B, and two goods, X and Y. Consumer A's utility function is g...

A:

Q: debt of RM12,000 bearing interest at 7% compounded annually is to be discharged by the sinking fund ...

A: *Answer: Give data    debt of RM12,000 bearing interest at 7% compounded annually is to be discharge...

Q: Suppose that the speed at which cars go on the freeway is normally distributed with mean 73 mph and ...

A:

Q: Assume the random variable x is normally distributed with mean u= 89 and standard deviation o = 5. F...

A: Given: Mean,μ=89Std deviation,σ=5  

Q: 11. The Scheffe test Sleep apnea is a sleep disorder characterized by pauses in breathing during sle...

A:

Q: To test the intelligence of 10th class boys and girls in a Higher Secondary School, a sample of 83 t...

A:

Q: 2. Monica is currently teaching basic mathematics at a university. She wants to know if there is a d...

A:

Q: study conducted by the Center for Population Economics at the University of Chicago studied the birt...

A: We have given that.   X~N( μ , ?^2 )   μ =3102 , ? =850 , n=788   Z-score =( x - μ )/?

Q: Consider the following regression model: Y; = Bo + B1X11 + B2X2¡ + B3X3¡ + B4X4i + U¿ We want to tes...

A: From the given information, The regression model is, Yi=β0+β1X1i+β2X2i+β3X3i+β4X4i+ui And H0:β2=β3 a...

Q: A food snack manufacturer samples 11 bags of pretzels off the assembly line and weighs their content...

A:

Q: The average amount of money spent for lunch per person in the college cafeteria is $6.52 and the sta...

A:

Q: – 0.85, Suppose you have joint random variables X and Y. It is found that COV(X,Y) Var(X) = 8, and V...

A: GivenCOV(X,Y)=-0.85Var(X)=8Var(Y)=5

Q: Example 17: In a sample of 1000 citizens of India, 540 are wheat eaters and the rest are rice eaters...

A: In order to test the claim that both rice and wheat are equally popular, determine whether the popul...

Q: Suppose Allan is going to build a playlist that contains 7 songs. In how many ways can Allan arrange...

A:

Q: Studies of the size and range of wild animal populations often involve tagging observed individual a...

A: Answer:-----                            Date:----21/2/2022  

Q: Find the midrange for the given sample data. Listed below are the amounts of weight change (in pound...

A: Midrange = (Maximum + Minimum) /2

Q: Suppose the age that children learn to walk is normally distributed with mean 12 months and standard...

A:

Q: f. Find the IQR for the average of 16 coffee drinkers. Q1 ounces Q3: ounces IQR: ounces

A:

Q: Consider the following regression model: Y; = Bo + B1X1i + B2X2¡ + B3X3¡ + B4X4¡ + Ui We want to tes...

A: From the given information, The regression model is, And H0:β3+β4=0 vs H1:β3+β4≠0 The regression eq...

Q: The mean yield of wheat from a district A was 210 tbs. with S.D.= 10 lbs. per acre from sample of 15...

A: Any assumption about the parameter or probability function is known as Hypothesis testing. For the g...

Q: A study conducted by the Center for Population Economics at the University of Chicago studied the bi...

A:

Q: Suppose that the average number of Facebook friends that users have is normally distributed with a m...

A: Normal distribution curve has bell shape which is symmetric about the mean. A normal distribution is...

Q: 1. You roll a single fair die two times. a. Find the probablity of observing two even numbers. 0.25 ...

A: Solution (1)

Q: Assume that a sample is used to estimate a population mean μμ. Find the 90% confidence interval for ...

A: The random variable X follows normal distribution. We have to construct the 90% confidence interval ...

Q: Determine whether the data described are nominal or ordinal. The hotel rooms available are ocean vie...

A: Given : The hotel rooms available are ocean view, mountain view, and poolside.

Q: The arithmetic mean of runs scored by 3 batsmen Vijay, Subhash and Kumar in the series of 100 inning...

A:

Q: Elaine gets quiz grades of 81, 85, and 82. She gets a 72 on her fınal exam. Find the weighted mean i...

A: Weighted mean formula = w1x1 + w2x2 + .............+wnxn

Q: 9. Which formula gives the probability distribution shown by the table? 6. P(X) 1/2 1/3 1/6 A. P(X) ...

A:

Q: 9. A number is selected at random from the set {1, 2, 3, .., 100}.What is the probability that the n...

A:

Q: Q1/For the below frequency distribution table calculate all the below reequipments. Class Frequency ...

A: Frequency of a class is the number of observations lie in that class. Mean of a grouped data using t...