Regardess of the kind of workout a gym goer does, the mean time spent on the treadmill is 44 minutes, with a standard deviation of 15 minutes. This includes warm up and cool down. If 36 randomly selected gym goers are observed, find the probability that they will have a mean of at least 40 minutes on the treadmill. (A 47.75% B 94.52% 2.28% 97.72%

Q: Complete the sentence: As the sample size n increases, A the standard error and the margin of error…

A:

Q: The accompanying table gives information on the type of coffee selected by someone purchasing a…

A: a) P(small cup) = 0.24+0.2 = 0.44 P(decaf coffee) = 0.2+0.1+0.1 = 0.4

Q: A joint density is given as Sx(y+1.5) 0<x<1 and 0<y<1 fx.x(x,y) elsewhere Find all the joint moments…

A:

Q: e data set 374 14 3 8 4 17 3 8 4 24 395 27 4 9 5 6 4 10 Send data to Excel Part: 0 / 4 Part 1 of 4…

A: Solution

Q: the .14 ,20 ,12 ,17 ,13 ,14 ,9 ,10 ,17 variance is 12.5 O 10.5 2.5 O

A: Given n=9

Q: The p hat =0.25, proportion standard deviation=0.065, and z=1.960.                               34.…

A: Solution-: Given:  p^=0.25, σp=0.065, Z=1.96 What is the size of the sampling proportion?* (A)…

Q: What is the range used to estimate the population parameter with an attached confidence coefficient?…

A: We have given that,  What is the range used to estimate the population parameter with an attached…

Q: KCERSISESuppose that X1,,X, form a random sample n the interval (0,0 +1), where the value of the…

A:

Q: In an agricultural experiment, 20 small plots of land were randomly assigned to two varieties of…

A: There are two independent samples which are variety A and variety B. We have to test whether the…

Q: What does the Empirical Rule say? Can you use the Empirical Rule for ALL probabilities in a normal…

A: 1. What does the Empirical Rule say? 2. Can you use the Empirical Rule for ALL probabilities in a…

Q: (1) The mean square value of X(t) is E[X?(t)] = Rxx (0) It is equal to the power of the process…

A:

Q: The heights of women have a symmetric distribution with a mean of 64 inches and a standard deviation…

A:

Q: standard deviation is 14.1 ounces. Based on this, what is the maximal margin of error associated…

A:

Q: Find a confidence interval for H or p. a. A random sample of 19 adults participated in a four-month…

A: We have given that,  (a)  Sample mean (x̄) = 9.2, sample size (n) = 19 and standard deviation (s) =…

Q: A  typical math class gets assigned 16 questions a week and was noticed to have a average of 18…

A: Given that, 16 questions were assigned a week in a typical class and was observed to have an…

Q: A researcher thinks that if expectant mothers use vitamins, the birth weight of the babies will…

A: The random variable birth weight follows normal distribution. We have to write the alternative…

Q: The route used by a certain motorist in commuting to work contains two intersections with traffic…

A: Given that, The route used by a certain motorist in commuting to work contains two intersections…

Q: If P(A | B) = 0.3, compute P(A and B).

A:

Q: The conditions for a sampling distribution of a sample proportion, when you do no know the true…

A: Sampling distribution: A sampling distribution is a statistical probability distribution derived…

Q: The mean replacement time for a random sample of 12 cd players is 8.6 years with a standard…

A:

Q: Big fish: A sample of 150 flounder of a certain species have sample mean weight 23.5 grams.…

A: The random variable weight follows normal distribution. We have to write the null and alternative…

Q: I can't understand your hand writing, please give me an organize one. Thanks

A: We have given thatMean(µ) = 75 Sample size (n) = 24Sample mean (x̅) = 70.23Standard deviations (s) =…

Q: 15 15 Find the value of 'r' if Cr43 C2r-3

A:

Q: 3.- Describe the four characteristics of association Outliers: Shape: Strength: Direction: What does…

A: Given data depicts the weight and BMI of 30 women. The objective is to describe the four…

Q: We can say a proximity measure is well designed if it is robust to noise and outliers. True/False

A: True.

Q: When describing a data set, the mean is used with and the median is sed with Z-scores are used to…

A: When describing a data set, the mean is used with average and the median is used with middle value.

Q: Suppose the probability of an IRS audit is 4.0 percent for U.S. taxpayers who file form 1040 and who…

A: It is given that the probability of an IRS audit for U.S. taxpayers who file form 1040 and who…

Q: The data below represent a random sample of weekly snowfall amounts, in inches, in a certain city.…

A: From the provided information, Sample size (n) = 9 Confidence level = 90%

Q: 9. Fuel Efficiency of Cars and Trucks Since 1975 the average fuel efficiency of U.S. cars and light…

A: Formula :

Q: Below are further details of the categories of books in the library. Category of book Number of…

A: Probability The probability shows the possibility of an outcome whose occurrence is uncertain or…

Q: In​ 2003, an organization surveyed 1,500 adult Americans and asked about a certain​ war, "Do you…

A: Given X1=1085 X2=575 n1=n2=1500

Q: What is the mean (¯xx¯) of this data set? mean = (Please show your answer to one decimal place.)…

A: given data : 93,32,100,28,82,93,30,72,84,63

Q: The value of Kenya shillings visa in US Dollar for the first eight days of August 2018 is given us…

A:

Q: 1. When we decide to reject the null hypothesis, the probability of committing a Type l error will…

A: For the given statements, we need to answer True or False for each.

Q: Regardless of the kind of workout a gym goer does, the mean time spent on the treadmill is 44…

A:

Q: Example 53. In an examination a candidate is required to answer 6 out of 10 questions which are…

A:

Q: B. True or false. Read and understand the questions. Wrtte TIf the statement is true otherwise write…

A: Note: As per the guidelines, in case of multiple subparts, answer to 3 subparts must be provided.…

Q: The mean of population is x

A: Mean is defined as Mean = Sum of observations/No. of observations

Q: A manufacturer of television sets is interested in the effect on tube conductivity of four different…

A:

Q: What is the 90th percentile in a t-distribution with 12 degrees of freedom?   a. 1.356 b. 1.796 c.…

A: The kth percentile implies the value, below which k of the total observations lie.

Q: The Normal model N(65, 5^2) describes the distribution of heights of college women (inches). (d) Is…

A:

Q: Question 8   .If the total sum of squares is 6058, the residual sum of squares is 163. What is the…

A: Formulae:                  1) intercept parameter= ∑Y-b∑Xn                  2)slope parameter=…

Q: Differentiate between functional and dysfunctional conflict. Provide a relevant example of each to…

A: The first type (functional conflict) could be there by design and could be a good thing to have.…

Q: Two tetrahedral dice, each with faces labelled 1, 2, 3 and 4, are thrown and the random variable X…

A: Given that, Two tetrahedral dice, each with faces labelled 1, 2, 3 and 4, are thrown and the random…

Q: The IQ scores of 50 students are given below.   106 118 90 97 108 91 105 85 89 105 92 108 112 105…

A: We use 85-89 for the first class and use the same width for each subsequent class.

Q: Craps: In the game of craps, a pair of dice are rolled, and people bet on the outcome. For example,…

A: Given, P(when there is a win) = 118 P(when there is a loss) = 1-118=1718 Profit when there is a  win…

Q: YAn a survey of 458 random households, people take pride in discussing hen methods of environmental…

A: The provided information is n=458x=236α=0.05p^=xn=236458p^=0.515 The critical value is zc=1.96…

Q: Are phone calls equally likely to occur any day of the week? The day of the week for each of 532…

A: The categorical variable is outcome. We have to test whether phone calls are equally likely to occur…

Q: The p-value for this hypothesis test is = 0.000. Make your decision to reject the null hypothesis or…

A: Test is that whether if our grading guidelines match up with what is actually happening. It is given…

Q: The conditions for a sampling distribution of a sample proportion, when you do not know the true…

A: