In a sample with M = 60 and s = 10 a score of X = 70 corresponds to a z-score of z = +1.00 because it is above the mean by exactly 1 standard deviation. For this same distribution, what is the z-score corresponding to X = 65?

Q: The following data relate to size of shoes sold at a store during a given week. Find the average siz...

A: x frequency (f) d =( X - A)/A = (X- 0.8)/0.5 A =8,h= 0.5 f.d 4.5 1 -7 -7 5 2 -6 -12 5.5 4 -5 -...

Q: A psychologist would like to examine the effects of a new drug on the activity level of animals. Thr...

A: For the given data Perform Anova one way test

Q: Problem 1: Asking Embarrassing Questions, Politely When doing polling, for instance to figure out ho...

A: Given information: x = 70 n = 100 p^N=xN=70100=0.70

Q: On the Standford-Binet test, the mean IQ is 100. A class of 21 kindergarten pupils were tested with ...

A: We have given that Population mean( µ ) = 100 Sample size (n) = 21 Sample mean (x̅) = 98 Standard de...

Q: (i) The sum of all the items, (ii) The sum of squares of all the items.

A: Here use formula of mean and standard deviation 

Q: 4. A survey of 35 adult Americans found the mean age (in years) that people would like to live is 87...

A: Given: n=35x¯=87.9s=15.5σ2=16

Q: Select the correct choice that completes the sentence below. Ha

A: Solution-: μp^=? (a) p^ (b) μ (c) p (d) σp^=?  

Q: 8. If p, = 0.37, what is q,? %3D 0.37 0.63 a. С. b. 0.73 d. 0.53 reiection region. This

A: 8) given that : P0 = 0.37 Find q0 = ???  By using the formula P P  + q = 1

Q: CHALLENGE! (Optional) Game of Chance (Lottery) A lotto works by picking 6 numbers from 1- 42 (Combin...

A:

Q: Grand Total" On the basis of information given below about the treatment of 200 patients suffering f...

A: Solution is given:

Q: "Given a standard normal distribution with mean =146 and standard deviation = 42, find P(X<81)." A 0...

A:

Q: Consider two types of home insurance: theft insurance and carthquake insurance. Each year there is a...

A: Given information: Each year there is a 1% chance that the home will be robbed and a 1% chance that ...

Q: 2. Suppose that Y has the cdf 0; Y<0 0 < y < 2 : 2<y< 4 13; F(y) 16 y 2 4 Find the mean and variance...

A: Given the CDF of Y: F(y) = 0              y≤0y/8        0&lt;y&lt;2y2/16    2≤ y &lt;41             ...

Q: 5. between z 0. 92 and z = 1. 75 6. to the right of z 1. 32

A: Given5)between z=-0.92 and z=1.75

Q: He/She/Them ~ According to a recent article from the Pew Research Center, “On the Cusp of Adulthood ...

A: We have given that  Sample size n =200 Favorable cases x =68 Sample proportion p^=x/n  =68/200 =0.34

Q: coating is taken from a week's output and the thickness (in millimeters) of these observations are s...

A: We have given that,  The data set is,  19.5, 21.7, 18.8, 20.7, 21.4, 19.1, 19.5, 20.1, 20.6 Then,  W...

Q: What is the probability that he wins on the second trial?   A gambler decides to bet on “Red” until...

A: A gambler plays roulette at Monte Carlo and continues gambling. A gambler is wagering the same amoun...

Q: Calculate any measure of skewness for the following : No. of headless Matches in a Box : No. of Boxe...

A: Given data is  No. of headless matches in box 0 1 2 3 4 5 6 7 No. of boxes 12 17 29 19 8 4 1 0

Q: In a large population, 66% of the people have been vaccinated. If 5 people are randomly selected, wh...

A: We have given that p = 66% = 0.66 n = 5 Here we will use  binomial distribution P(X = x) = nCx px (1...

Q: Suppose that the growth behavior of a native catfish is to be characterized. To understand the growt...

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: SITUATION: The average salary loan for a government employee is 23, 000. If he debt is normally dist...

A:

Q: If P(0 < Z < 0.53) = 0.2019, find the value of P(Z < 0.53)?

A: We have Given that P(0 &lt; Z &lt; 0.53) = 0.2019 We have to find P(Z &lt; 0.53)

Q: Illustration 11.22. The sum of a set of 100 numbers is 4000 and the sum of its square is 162500 and ...

A:

Q: The contents of 10 similar containers of a commercial soap are 10.2, 9.7, 10.1, 10.3, 10.1, 9.8, 9.9...

A: Denote the soap content of container by X. In the given problem, the data for X is 10.2, 9.7, 10.1, ...

Q: 128 of all Americans live in poverty. If 31 Americans are randomly selected, find the probability th...

A: Let X be the random variable from binomial distribution with probability (p)= 12% = 0.12 and sample ...

Q: For a certain type of potato soil the number of click beetles per cubic foot has a mean of 400. Assu...

A: From the given information we have, Mean of the Poisson distribution = 400 We need to find the intev...

Q: The following table represents the marks obtained by a batch of 10 students in certain class tests i...

A: Solution is given:

Q: Which of the following is used to calculate an interval approximation of the value of a descriptive ...

A: Confidence interval is used to calculate an interval approximation of the value of descriptive measu...

Q: 5. When Earth travelled through the storm of meteorites trailing the comet Tempel- Tuttle on Novembe...

A: Given: p = 0.01 n = 3  

Q: CH10: An independent-measures study was completed by Dr. Savannah Deanne who tested n1 = 6 and n2 di...

A: We have given that  n1 = 6,  n2 = 21 Mean sample difference = 20 Pooled variance s2p = 93

Q: II. the probabilmies 1. P(0<z<1.44 ) 2. P(-2.81 <z<0) 3. P (z<-0.73 ) 4 P(-3.10 <z<1.90) 5. P(1.13 <...

A: 4)P(-3.10&lt;Z&lt;1.90)=?

Q: According to the table below, what is the probability that a student chosen at random will be 16 or ...

A:

Q: The following are the 8 weights (kg) and blood glucose levels (mg/100mL) of 5 apparently healthy adu...

A: Given The data is as follows: Weight (x) Glucose (y) 75.3 109 73 104 59.4 79 95.7 121 8...

Q: Which of the following is a non-parametric test?

A: Given that  We have to find which of these is non parameter   Z test  ANOVA  T test  Chi square   

Q: 4. Explain the RESET test as a general test for functional form misspecification and discuss the dra...

A: Mis-specification The mis-specifications in the functional model may have some nonlinearities Model...

Q: You are given the following information: (i) (Tä)r:10 = 40.0 (ii) är:10 = 7.0 (iii) i = 0.04 (iv) qa...

A: Given  ?a¨x:10=40 a¨x:10=7 i=0.04 qx=0.02

Q: (c) Calculate a 90% lower confidence bound for o. i 1.23

A: Here calculate sample variance from given 

Q: For a population with mean of 50 and standard deviation of 8, what is the raw score that corresponds...

A:

Q: If np> 5 and nq > 5, estimate P(more than 9) qith n=12 and p = 0.7 by using the normal distribution ...

A: Given,n=12p=0.7q=1-pq=1-0.7=0.3

Q: The population mean and standard deviation are given below. Find the required probability and determ...

A:

Q: Expenditure of a family on 3 times are in the ratio of 2 : 5:3. The prices of these commodities rise...

A:

Q: 5. Suppose that a student attending a class has an infectuous disease. Suppose that with probability...

A:

Q: Example 13. Two variables gave the following data: X = 20, Y 15. 0. 3, r = 0.7. %3D = 4, o. %3D Obta...

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Q: Draw a cumulative frequency curve for the following data: Marks : 0-10 10-20 20-30 30-40 40-50 50 - ...

A:

Q: On the Standford-Binet test, the mean IQ is 100. A class of 21 kindergarten pupils were tested with ...

A:

Q: For a tv

A: For a two tailed distribution, the rejection region will be in both the tails.

Q: Math is buying hamburgers and cheeseburgers for his study group in their school canteen. A hamburger...

A: Hamburgers = 20rs/piece  Cheese burgers = 25rs/piece Matt would spend 300 to 500 for burgers. 

Q: The student council is hosting a drawing to raise money for scholarships. They are selling tickets f...

A:

Q: Problem 2. Marks obtained by 50 boys of a class are as unde. : 34 54 10 21 51 52 22 39 26 34 12 43 4...

A: Marks of 50 boys of class are given, we need to construct the frequency table with the class interva...

Q: The number of traffic accidents per week in a small city has a Poisson distribution with the standar...

A: