Find the mean of the following data set: 27, 28, 30, 41, 43, 44, 45, 51, 51, 53, 53, 54, 56, 56, 56, 57, 57, 58, 58, 59, 61, 62, 62, 62, 63, 64, 67, 68, 68, 68, 69, 69, 74 5757 5151 6868 55.58

Q: A hypothesis test is to be performed. Determine the null and alternative hypotheses. The maximum…

A: We need to determine the null and alternative hypothesis for the given problem.

Q: What does F stand for/ represent?

A: F test mean Ronald fisher test  It is one of the method to solve test statistics

Q: In a class of 10 students there are 4 boys and 6 girls. If a committee of 3 students is selected…

A:

Q: If X is normally distributed with a mean of 70 and a standard deviation of 4.55. If you take a…

A: Provided information: Mean = 70 Standard deviation = 4.55 Sample size = 120

Q: Let X and Y have joint density fx,y(x, y) = (6 - x - y) I(0,2)(x) I(2,4) (y). a. Find Var[Y| X = x].…

A: The joint distribution of X and Y is as follows: fX,Y(x,y)=18(6-x-y); 0<x<2, 2<y<4 The…

Q: Oview page 1 of the table. Click to view page 2 of the table. www

A: Given Using the standard normal z table

Q: Find the probability and interpret the results. If convenient, use technology to find the…

A: GivenMean(μ)=61000standard deviation(σ)=6000sample size(n)=34

Q: a) Since data were collected for 1 ✓ make is a histogram quantitatve b) Using the formula class…

A: Followings are the Explanation of the Question

Q: A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are…

A: From the provided information, The data values are as follow: Systolic 117 128 158 94…

Q: Using the given margin of​ error, confidence​ level, and likely range for the observed value of the…

A: Obtain the sample size. The sample size is obtained below as follows: The formula of sample size is,

Q: The Toylot company makes an electric train with a motor that it claims will draw an average of only…

A: Given: Mean, x̅ = 1.40  Sample standard deviation, s = 0.43 Sample size, n= 9 Level of significance,…

Q: The population mean and standard deviation are given below. Find the indicated probability and…

A: Given,sample size(n)=32mean(μ)=12,750standard deviation(σ)=2.5

Q: The length of human pregnancies from conception to birth varies according to a distribution that is…

A: Given mean =266 days standard deviation =16 days.

Q: of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed…

A:

Q: The following table shows the approximate amount of trash produced in an industrialized country from…

A: Given: n = 3 Formula Used: The equation of regression line is: Y = a + bX b = n∑XY-∑X∑Yn∑X2-∑X2 a =…

Q: Use a t-distribution to find a confidence interval for the difference in means μ = μ₁ - ₂ using the…

A:

Q: We compare two scores on a normal distribution. We find that the first score has a Z that is 2.5…

A:

Q: Determine the P-value for a one sided test with t = 1.75 and n=16 O a. 0.075 Ob. 0.05 O c 0.0375

A: we will find the p value from t table for one tailed test.

Q: nsider the following data representing the price of plasma televisions (in dollars). 260, 1355,…

A: Followings are the Explanation of the question

Q: ume that the random variable X is normally distributed with mean u=70 and standard deviation 9. Find…

A: Given data,Mean μ=70sd    σ=9Find the 40th percentile for X

Q: he IQ of a person follows a normal distribution and has a mean of 100 and a standard deviation of…

A: Given that  The data is normally distributed with  Mean (μ) = 100 Standard deviation (σ) = 15   We…

Q: Suppose that the time required to complete a 1040R tax form is normal distributed with a mean of 100…

A:

Q: Some manufacturers claim that non-hybrid sedan cars have a lower mean miles-per-gallon (mpg) than…

A: From the provided information,

Q: if mean is 72 and standard deviation is 8 what is  P( x ≤ 78)

A: Given that.   X~N( μ , ?^2 )   μ=72    , ?=8   Z-score =( x - μ )/?

Q: In a sample of 152 people the average score was 74 with a standard deviation of 6. What is the…

A: Sample size = n = 152   Mean = 74  Standard deviation = 6

Q: Identify which of the following values are not valid numbers for a probability. 5 30%, 3₁ 330 25…

A: which of theses are not valid numbers for a probability? Select all that  apply?

Q: The body temperatures of a group of healthy adults have a bell-shaped distribution with a mean of…

A: Given data in the problem is Mean=98.25 SD=0.68  (a) From the emperial third rule  99.7% of the data…

Q: Boys and girls: The National Health Statistics Reports reported that a sample of 320 one-year-old…

A:

Q: Find D,y using the rules for finding derivatives. y = (9x² - 5) (3x² - 8x+4) Dxy=

A: Given: y = (9X2-5)(3X2-8X+4) Formula Used: Dxy = dydx ddx(uv) = dudxv+udvdx

Q: Assume that x has a normal distribution with the specified mean and standard deviation. Find the…

A:

Q: Let X and Y be random variables whose joint probability distribution function is given by f(x, y) =…

A: The question is about to find joint m.g.f Given : f ( x, y ) = e-( x + y )  , x > 0 , y > 0…

Q: Assume the random variable x is normally distributed with mean μ = 86 and standard deviation o=4.…

A: GivenMean(μ)=86standard deviation(σ)=4

Q: amusement park studied methods for decreasing the waiting time (minutes) for rides by loading and…

A: cost ride_type metho 46 RC M1 48 RC M1 56 SD M1 48 SD M1 52 LF M1 48 LF M1 51 RC M2…

Q: Three different methods for assembling a product were proposed by an industrial engineer. To…

A:

Q: x is a normally normally distributed variable with mean µ = 21 and standard deviation o = 4. Find…

A:

Q: Question 6 x is a normally normally distributed variable with mean μ = 21 and standard deviation o =…

A:

Q: Professor Jennings claims that only 35% of the students at Flora College work while attending…

A: Given: Sample size,n= 76 Number of students who have jobs,x= 35  Level of significance=0.05

Q: The distribution of heights of adult men is approximately normal with a mean of 69 inches and a…

A: Mean = 69  Standard deviation = 2  Z-score = -0.5

Q: The average oxygen uptake of healthy women is assumed to be forty. Thirty woman in a mountain city…

A: Followings are the Explanation of the question   Option:- 1) t-statistic for single Mean 1) when the…

Q: The lengths of pregnancies in a small rural village are normally distributed with: μ = 269 0 = 15 In…

A: Given Mean=269 Standard deviations=15 Z=99.7%

Q: Fill in the blank. The states that if, under a given assumption, the probability of a particular…

A: Given dataFill in the blank  The_____states that if under a given assumption the probability of a…

Q: The following MINITAB output display presents a 98% confidence interval for the difference between…

A: From the provided information,

Q: A random sample of 17 hotels in Boston had an average nightly room rate of $165.40 with a sample…

A: Followings are the Explanation of the question  Use the t distribution to calculate t critical value…

Q: The Nero Match Company sells matchboxes that are supposed to have an average of 40 matches per box,…

A: Given: μ = 40 σ = 8 n = 90 X = 43 α = 1% = 0.01 Formula Used: Test-statistic Z = X-μσn

Q: In order to gain additional information about respondents, some marketing researchers have used…

A: Given datan=262p=86%

Q: Why is the Chi- square test applicable to the given scenario?

A: For the given sample data, we will conduct a chi-square test for independence.

Q: Which distribution should you use? You are approximating the proportion of the population in…

A: According to the given information in this question We need to identify the correct distribution

Q: The data below, grouped into classes, refers to the amount of money (in pounds) spent by 60 people…

A:

Q: Find the indicated probability using the standard normal distribution. P(Z 1.98) Click here to view…

A: P( Z<-1.98 or z >1.98)=?

Q: ook Street Books sells about 1040 books each month. The circle graph displays the most popular book…

A: Total number books sell = n = 1040 In pia chart  Computer = 30% Nonfiction = 18% Science fiction =…