Suppose a grocery store sells a particular type of fruit that is usually ripe 80% of the time. If a customer buys 10 of these fruits, what is the probability that at least 8 of them are ripe? And what is the minimum number of fruits a customer needs to buy in order to have at least a 95% chance of getting at least 1 ripe fruit?

Q: 5. On the first line of the table, enter the value for P(X ≤ 0) that you found in question#4(. On…

A: The cumulative distribution function (CDF) of a random variable is defined as : FX(x) = P(X≤x)…

Q: A national health survey weighed a sample of 260 boys aged 6-11 and found that 45 of them were…

A: Given that: Sample 1(boys): n1=260x1=45 Sample 2(girl): n2=230x2=30 Level of significance, α=10%

Q: Corporate triple-A bond interest rates for 12 consecutive months follow. (a) Construct a time series…

A: Solution: From the given information,

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A:

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A: Given information: The population on January 1, 2020, and on December 31, 2020, was 85064, and 94387…

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A: Given information: The data for the number of hours and the number of cubic feet is given.

Q: Fill-in the table by computing X2, Y2, XY, and the total (sum) After filling in the table…

A: The x and y values are given.

Q: Problem: In a Gaussian variable experiment, random variables X, Y, Z follow the rule: X, Y|Z are…

A: ANSWER: (a) Given Z=2 To find the pdf of X, we need to use the conditional distribution of Z given…

Q: Suppose that at the beginning of 2004 you invested $8,500 in the Stivers mutual fund and $5,000 in…

A: The required solution is as given in step.2

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A: Here, we have the given the sales data of different quarters of different years.

Q: The Computer Anxiety Rating Scale (CARS) measures an individual’s level of computer anxiety, on a…

A: t = (M1 - M2)/√[(Sp2*(1/n1 + 1/n2))]  Sp2 = [(df1*S12) + (df2*S22)]/(df1 + df2) Given :  N1 = 40…

Q: Descriptive epidemiology characterizes the amount and distribution of disease within a population…

A: ANSWER: Descriptive epidemiology can enable the researcher to assess health and disease trends in a…

Q: 4. What is P(X > 3)? What outcomes x are included in this calculation? This probability and the one…

A: Given data is # siblings(x) P(X=x) 0 0.21 1 0.32 2 0.25 3 0.14 4 0.05 5 0.01 6 0.01…

Q: Is this sample of 25 exam scores inconsistent with the hypothesis that the true variance is 64…

A: Chi square test statistic = (n-1) *s^2/ σ^2

Q: If n = 560 and p^ (p-hat) = 0.45, construct a 95% confidence interval.

A: Given,n=560p^=0.45confidence level 95%

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: Given that.   X~N( 0 , 1 )   μ=0 , ?=1 (for standard normal distribution)   Z-score =( x - μ )/?

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A: Given:-             Two fair, six-sided dice are rolled. If the numbers rolled do not match, you…

Q: The average return for large-cap domestic stock funds over the three years 2009-2011 was 14.4%.†…

A: Given information: The mean and standard deviation is μ=14.4, and σ=4.4 respectively.

Q: 2000 freshmen at State University took a math test. The score were distributed normally with a mean…

A: given data normal distributionμ = 70σ = 5use empirical rule.

Q: With 4 tosses of a coin the outcome 0110 represents: Tail, Head, Head, Tail. Which statements if any…

A: If a process is done in two phases in which the first phase can be done in m ways and the second…

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: GivenMean(μ)=0οCstandard deviation(σ)=1.00oC

Q: At a school fund raiser, the name of every person who attended was entered into a drawing. At the…

A: Given data :  At a school fund raiser, the name of every person who attended was entered into a…

Q: Using The t Distribution Table, find the P-value interval for a right-tailed test with n-23 and…

A: The test statistic is t = 2.390 and the sample size is n = 23.

Q: Suppose a manufacturer produces light bulbs and claims that their average lifespan is 1000 hours…

A:

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A: According to the given information in this question We need to find karl Pearson coefficients of…

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A: Given that.   X~N( μ , ?)   μ=56 , ?=8   Z-score =( x - μ )/?

Q: For a confidence level of 91% with a sample size of 24, find the positive critical t value to 3…

A: Given,sample size(n)=24Confidence level=91%

Q: Estimate the average mark in an exam using the following table: 0-10 Marks Total Percentage of…

A: Given: Marks Total Percentage of Students 0 - 10 0.14 0 - 20 0.26 0 - 30 0.56 0 - 40 0.80…

Q: can you do problem 4 as well

A: Given that, X has a following continuous distribution:- f(x) = x23 ,    -1≤x≤2

Q: A statistical program is recommended. Annual retail store revenue for a technology company from 2007…

A: Solution: From the given information, Year Period Retail Store Revenue ($ billions) 2007…

Q: The following table describes the results of roadworthiness tests of Ford Focus cars that are three…

A: x P(x) 0 0.377 1 0.399 2 0.176 3 0.041 4 0.005 5 0+ 6 0+

Q: decided he will only consider careers with an average starting salary higher than 46200. He collects…

A: According to the given information in this question There are more than three subparts according to…

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Q: Central High School believes their students have unusually high SAT scores on average. The school…

A: Given that.   X~N( μ , ?)   μ=1067 , ?=207  , n=165   Z-score =( x - μ )/? NOTE:- According to…

Q: Assume that you have a sample of n,8, with the sample mean X, 42, and a sample standard deviation of…

A: The t-distribution is very useful probability distribution when the sample size is small and the…

Q: Question no 1Suppose the heights of a group of people follow a normal distribution with a mean of…

A: Given,mean(μ)=170standard deviation(σ)=10Sample size(n)=50

Q: 2w6- 6w5+ 4w³- 4) √ (²w - 4w ³-5) dw w4

A: Here, we have given some integration problem. Also the function is also given .

Q: Use a normal approximation to find the probability of the indicated number of voters. In this case,…

A: P(v0te) = p = 0.22 sample size(n) = 182 x = no. of voters voted P(x=45) = ?

Q: Suppose that the average waiting time for a patient at a physician's office is just over 29 minutes.…

A:

Q: In a recent year, a hospital had 4495 births. Find the mean number of births per day, then use that…

A: Given data, No of births in hospital in a year =4495 x = no. of births in a day x follows poisson…

Q: Find the class boundaries. Class limits Class boundaries 0.5-11.4 11.5-22.4 22.5-33.4 33.5-44.4…

A: Class boundaries :  If the difference between ( upper limit of one class and lower limit of second…

Q: For a standard normal distribution, find c if P(Z < c) = 0.1208 Use 2 decimal places. C=

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Q: Assume that a procedure yields a binomial distribution with a trial repeated n = 11 times. Use…

A: Given  Using Binomial distribution  n=11 times  k=8 and p=0.33 P(X=K)=?

Q: Roberto conducted a study to compare the left and right hemisphere's language ability. What would…

A: Person R has conducted a study to compare the left and right hemisphere’s language ability.

Q: The table below shows the daily costs of Corny's Corn Cobs. Corny's sells corn by the dozen in a…

A:

Q: In a recent year, a hospital had 4495 births. Find the mean number of births per day, then use that…

A: given data 4495 births per year. there are 365 days in  a  year. x = no. of births per dayx follows…

Q: The scores on the Accuplacer test and High School GPAS are normally distributed. The Accuplacer test…

A:

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: GivenMean(μ)=0oCstandard deviation(σ)=1.000C

Q: In a three-digit lottery, each of the three digits is supposed to have the same probability of…

A: Answer  Given alpha = 0.02  Digit       Frequency  0                   22 1                   27 2…

Q: Given M1 = 12.44, M2 = 9.06, and SMD = 2.33, calculate t.

A: