The probability distribution for the number of students in Statistics classes offered at a small college is given, but one value is missing. Fill in the missing value, then answer the questions that follow. X P(X) 22 0.18 23 0.22 24 0.25 25    26 0.2 Find the mean number of students in a Statistics class at the college:    Find the standard deviation of the number of students in a Statistics class at the college:

Q: Given a sample with a mean of 94 and a standard deviation of 17, find x such that Pr(X > x) = 0.321.…

A: Given  mean (μ) =94 and standard deviation (σ) =17  find x such thatP(X > x) = 0.321.

Q: Suppose the study conducted showing gender difference in salary of management graduates students…

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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.

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A:

Q: z scores that are accurate to 1 place after the decimal point (these values correspond to the tick…

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

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A: From the provided information, Mean (µ) = 37 Standard deviation (σ) = 9

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Q: Express the confidence interval (365.9, 542.9) in the form of ± ME. x ±ME= H

A: Given confidence interval is (365.9,542.9)

Q: GET THE STANDARD DEVIATION

A:

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Q: A particular fruit's weights are normally distributed, with a mean of 777 grams and a standard…

A: given data normal distributionμ = 777σ = 9for haviest 10%, cutoff = ?

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Q: The mean salary paid to 1500 employees of an organization was found to be $12, 500. Later on, after…

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Q: If the sample size is 25, what is the value of the degree of freedom when using the z-test during a…

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Q: x P(x) 0 0.1 1 0.2 2 0.2 3 0.5 Find the mean of this probability distribution. Round your answer…

A: x p(x) x*p(x) 0 0.10 0.00 1 0.20 0.20 2 0.20 0.40 3 0.20 0.60     1.20

Q: For the stem-and-leaf plot below, what is the maximum and what is the minimum entry? Key: 11|9=11.9…

A:

Q: If the computed test value is within the critical region, what is the correct action to be done? O…

A: Given data :  If the computed test value is within the critical region, what is the correct action…

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 11.6…

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Q: Find the probability that the average effective time of the pain relief drug for a sample of 25…

A: The mean is 2 hours and the standard deviation is 0.20 hours.

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A:

Q: A legislative aide is doing research on the duration of calls initiated on car cellular phones. A…

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A: Given :  n1 = 13 dof1 = n-1 = 13-1 = 12 Mean1 = 62.9 S1= 8.7   n2 = 18  dof2 = n-1 = 18-1 = 17 Mean2…

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A: Note:- As per the Bartleby guidelines only one question with its subparts can be answered. Kindly,…

Q: The Standard Normal variable is Z~ N(0,1). Which of these statements is incorrect?

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Q: IQ scores form a normal distribution with a mean of μ =105 and a standard deviation of   σ = 11.…

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Q: Use the data below in answering the tasks for PT2. Situation: A student conducted a survey on the…

A: Given: Respondent Sex Age Vaccination Status 1 M 49 4 2 M 60 2 3 M 71 3 4  F 50 3 5 M…

Q: Which of these is not a binomial probability of X~B(12,0.4)? A. P(X-5) = ¹2Co(0.4)5(0.6)7 B.…

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Q: From a sample with n= 36, the mean duration of a geyser's eruptions is 3.48 minutes and the standard…

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Q: Select the two most common alpha levels for t-test and ANOVAS. .001 .005 .01 .05

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Q: Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and…

A: the graph depicts the stanadrd normal distribution mean= 0standard  deviation=1p(X<z0=0.2643…

Q: This is a subjective Su2mc210on, hence you have to write your answer in the Text-Field given below.…

A: Equal frequency binning :  Each bin consists equal number of data(values)   Equal width binning :…

Q: Find the ones digit of this sum: 2^22202 + 3^32023 + 5^52025 + 8^82028

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Q: Traditionally, about 70% of students in a particular statistics course at ECC are successful.…

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Q: 5 1 11 0 1.0 -2.0 -1.0 0.0 1.0 this. The 20 3.0 4.0 5.0 6.0 Ireland GDP growth pre-2008 %/qtr 0.854…

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Q: Express the confidence interval 30.1%<p<41.5% in the form of p+_E

A: given data, confidence interval 30.1%&lt;p&lt;41.5%p±E=?

Q: Given a sample with a mean of 57 and a standard deviation of 8, calculate the following…

A: given datanormal distributionμ = 57σ = 8P(x&lt;63.9) = ?

Q: I need help remembering the steps for how to create a confidence interval for the following type of…

A: Obtain the 95% confidence interval for the difference in the proportions of senior men and women who…

Q: The heights of NBA players are normally distributed, with an average height of 6'7" (i.e. 79…

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

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Q: A sample of size n = 19 has variance s2 = 1.96. At α = .05 in a right-tailed test, does this sample…

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Q: Genetics: A geneticist is studying two genes. Each gene can be either dominant or recessive. A…

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Q: Assume that 38.2% of people have sleepwalked. Assume that in a random sample of 1466 adults, 597…

A: