Assume the random variable x is normally distributed with mean μ = 85 and standard deviation o=5. Find the indicated probability. P(70

Q: T-Test Y_2002 Y_2004 Y_2005 Y_2006 Y_2007 N One-Sample Statistics 4 .94550 4 .86850 4 .68700 4…

A: SPSS output is given.

Q: In conjunction with the housing foreclosure crisis of 2009, many economists expressed increasing…

A: The degrees of freedom for the between sample variation is, Where,   K denotes the number of…

Q: In a survey conducted by the Gallup​ Organization, 1100 adult Americans were asked how many hours…

A: Given data, In a survey conducted by the Gallup​ Organization, 1100 adult Americans were asked how…

Q: me waiting times between a subway departure schedule and the arrival of a passenger are uniformly…

A: The arrival of passenger are uniformly distributed between 0 and 6 minutes.

Q: Use the pulse rates in beats per minute (bpm) of a random sample of adult females listed in the data…

A: data set is  sample size(n)=50significance level(α)=0.01claim is that mean is less than 77 bpm

Q: neers want to design seats in commercial aircraft so that they are wide enough to fit 99% of all ma…

A: X~N( μ , ?)   μ=14.6 , ?=1.1   Z-score =( x - μ )/?

Q: Kori categorized her spending for this month into four categories: Rent, Food, Fun, and Other. The…

A: Total spent in this month=$2700  The percents she spent in each category are pictured here. Rent =…

Q: The life of light bulbs is distributed normally. the standard deviation of the lifetime is 29 hours…

A: Answer: From the given data, mean(μ) = 590 standard deviation(σ) = 29 X = 608

Q: In a random sample of 68 trout, the average weight is 2 pounds, with standard deviation(s) = 0.6…

A: Answer:- Given , sample size, n = 68  Sample average weight = 2 pounds Sample standard deviation, s…

Q: In IBM SPSS, what does clicking on this icon do? A 14 a. Tell you which data analysis to perform on…

A: The icon image in IBM SPSS is given.

Q: The indicated IQ score, x, is (R

A: here mean = 100 standard deviation  = 15  X = IQ score

Q: The Ericsson method is one of several methods claimed to increase the likelihood of a baby girl. In…

A: We have given p-values are 0.999,0.5,0.95,0.01 Since we will prefer the method which increases the…

Q: s is more than 30 minutes, the accompanying Excel display is obtained. Test the given claim by using…

A: Population mean μ =30

Q: In a random sample of 100 trout, the average weight is 10 pounds, with standard deviation (s) = 0.6,…

A: Answer: From the given data, Sample size(n) = 100 mean (x¯) = 10 standard deviation(s) = 0.6

Q: A group of students estimated the length of one minute without reference to a watch or clock, and…

A: 76, 93, 50, 71, 52, 36, 66, 69, 76, 60, 72, 80, 103, 100, 71sample size(n)=15 Degrees of…

Q: The life of light bulbs is distributed normally. the standard deviation of the lifetime is 32 hours…

A:

Q: The number of chocolate chips in a bag of chocolate chip cookies is approximately normally…

A: Population mean μ=1261, standard deviations σ=117

Q: At the 0.01 level of significance, is there evidence of a significant difference between…

A: To test for a significant difference between the proportions of small and large organizations with…

Q: der the following hypothesis test: Ho: μ 12 mple of 25 provided a sample mean = 14 and a sample…

A: Sample size n =25 Sample mean=14 Standard deviation =4.32 NOTE:- According to bartleby guidelines…

Q: A toy store would like to open a new store in the city of Thousand Oaks, and they would like to know…

A: A sample of 100 households are taken in which 49 had kids.

Q: Assume that adults were randomly selected for a poll. They were asked if they "favor or oppose using…

A: From the given information     Significance leve, alpha = 0.01…

Q: How many years is a randomly selected 19-year-old expected to live beyond his or her 19th birthday?…

A:

Q: Your statistics instructor claims that 60 percent of the students who take her Elementary Statistics…

A: Sample size n =64 Favorable cases x =35 Sample proportion p^=x/n  =35/64 =0.5469

Q: here to view at distribution table here to view page 1 of the standard normal distribution table.…

A: Sample size n =106 Sample mean=98.9 Standard deviation =0.62

Q: Take a guess: A student takes a multiple-choice test that has 11 questions. Each question has four…

A: Total no.of questions(n)=11Each question has four choicesProbability of chosing correct…

Q: The average number of tesla cars that you can see on your drive to work is 20. What is the…

A: Answer: From the given data, X~Poisson distribution(λ) (λ) = 20

Q: In a recent poll, 270 people were asked if they liked dogs, and 34% said they did. Find the margin…

A: Sample size=n=270

Q: The following information on rotting or diseased kiwi fruit has been provided by workers of a…

A: From the given information, Sample number Mean 1 15 2 10 3 12 4 20 5 17 6 25 7 10…

Q: We’re trying to show that the true average calcium level in humans is greater than 2.4. What are the…

A: Claim : true average calcium level in humans is greater than 2.4

Q: Mike is investigating possible careers. He has decided he will only consider careers with an average…

A: Sample size n =14 Sample mean=54796 Standard deviation =5050 NOTE:- According to bartleby guidelines…

Q: Use the theoretical method to determine the probability of the following outcome and event. State…

A: The correct option for the given probability statement is identified below as follows:   From the…

Q: Pennsylvania Seniors Favorite Subject? Exercise 1.24 describes a dataset, stored in PASeniors, for a…

A: From the provided information, n1=186x1=39n2=268x2=69

Q: You want to know if an employee’s opinion about an organization is the same as the opinion of that…

A: Mean difference score =-3.15  Standard deviation of difference score=1.97  Level of…

Q: A sample of employees at a large chemical plant was asked to indicate a preference for one of three…

A: Chi-square is used to test the two categorical variables. The levels in each categorical variable be…

Q: A well-known brokerage firm executive claimed that 90% of investors are currently confident of…

A: The population proportion p=0.90 The sample size n=400 The sample proportion p^=0.84 The level of…

Q: In a recent court case it was found that during a period of 11 years 857 people were selected for…

A: Given: Sample size (n) = 857 Sample proportion (p̂) = 0.38  Population proportion (p) = 0.78…

Q: Hotel Muri Beach Odyssey Pattaya Resort Sojourner's Respite Spa Carribe Penang Resort and Spa…

A: The given data is Overall Comfort Amenities In-House Dining 94.3 94.5 90.8 97.7 92.9 96.6…

Q: How can probability theory be applied to real-world scenarios, and what are some common…

A:

Q: Looking at the graph below, approximately what was the median success score for the nicotine group:…

A:

Q: > t.test(Midterm_BUS$ALKPHOS, alternative = One Sample t-test "less", mu = 90, conf.level data:…

A: t-test is performed at α=0.05 significance level. Population (true) mean is μ=90. p-value is 0.8094.…

Q: ANOVA calculations and rejection of the null hypothesis

A: First, we need to calculate the treatment total (T) for each treatment group. To do this, we…

Q: tes of 167 randomly selected adult males vary from a low of 40 bpm to a high of 104 bpm. Find the…

A: Margin of error =E =2 99% confidence interval

Q: A poll is given, showing 50% are in favor of a new building project. I- 8 people are chosen at…

A: Answer: From the given data, P = 50% =0.50 n = 8 P(X=5) is,

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: Regression equation y^=26.699-0.639*x

Q: 1. Using a calculator or computer, sketch the grant of the following function. (i)y = 3* (ii)…

A: graph of y=3^x The function y = 3^x is an exponential function. Its graph is a curve that starts…

Q: a. Choose the correct null and alternative hypotheses. O Ho: There is an association between Star…

A: AS PER POLICY I HAVE CALCULATED FIRST 3 SUBPARTS PLZ REPOST FOR REMAINING PARTS WITH NOTE I NEED…

Q: For a Chi-Squared Goodness of Fit Test about a distribution that has the following characteristics:…

A: The given distribution is, Categories Percentage 1 20% 2 30% 3 10% 4 15% 5 25%

Q: For a goodness-of-fit test for a distribution with 3 categories, what are the degrees of freedom for…

A: Given:   Distribution with 3 categories  k=3

Q: Part G) cont. C)if an individual is chosen at random,the probability that they have exactly 2 credit…

A: The mean is the measure of central tendency and it determines the average of a data set for…

Q: Less than 60% of people support the death penalty. Express the null and alternative hypotheses in…

A: claim is Less than 60% of people support the death penalty