QUESTION 2 In which of the following situations we can not construct a confidence interval for the population proportion p? x=196 and n=200. x=11 and n= 38. x=10 and n=74. x=174 and n=260.

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A: Give the ranks for the three samples combinedly from lowest number to largest number. If there are…

Q: A simple random sample of IQ scores is selected from a normally distributed population of statistics…

A: Given;sample size(n) = 19sample mean(x¯)=131sample standard deviation(s) = 11confidence level 95%

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A: Given,no.of defective bulbs=3no.of non defective bulbs=7Total no.of bulbs=10

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Q: emale is randomly selected, find the probability that her pulse rate is less than 79 beats per…

A: Given that.   X~N( μ , ?)   μ=73    , ?=12.5   Z-score =( x - μ )/?

Q: The bookstore at IRSC would like to estimate the proportion of students who prefer electronic…

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Q: how do i find a significance level of 0.015 when i have a two tailed test

A: Given information: α=0.015 Find: The significance level for the two-tail test. Define: Significance…

Q: A binomial probability is given. Write the probability in words. Then, use a continuity correction…

A: Given binomial probability is P(x≥52)

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Q: In a random sample of twelve people, the mean driving distance to work was 18.9 miles and the…

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Q: Jerry and George are writing a pilot for a sitcom. They estimate they have a 90% chance of the show…

A: Expected value of X is given by,  E(X)= ∑Xi*P(Xi)  P(Xi) Xi 0.25 20 0.70 100 0.05 500

Q: What are four main functions of statistics?

A: Four main functions of statistics : 1). Statistics helps in the proper and efficient planning of a…

Q: 9. Cola Cans A random sample of 20 aluminum cola cans with thickness 0.0109 in. is selected and the…

A: Given Information: Sample size n=20 Standard deviation is 18.6 Significance level α=0.05 Standard…

Q: 3. It is reported that 85% of all freshman entering high school graduate on time with their class. A…

A: Given,n=145p=0.85

Q: (a) The probability that the friend is between 15 and 30 minutes late is (Type an integer or a…

A: data follows the uniform distribution X~U(0,30) a=0 b=30

Q: When the relationship between two variables is perfect and inverse, what is the value of r?   a.…

A: given data  we have to find correct answer from given options.    When the relationship between two…

Q: if x is distributed as normal with mean 40 and variance 9 what is P x=40 is

A: We have given  Mean(µ) = 40 Variance (σ2) = 9 Standard deviations (σ) = √Variance (σ2) = √9 Standard…

Q: The statistical technique we use to analyze the relationship between the dependent variable and the…

A: Simple linear regression is linear relationship between two variables.

Q: If there are 11 people in the first sample and 10 people in the second sample, the degrees of…

A: Degree of freedom = sample size -1

Q: Consider a population regression equation: Y =B₁ + B₁X + U₁ where and are the intercept and slope…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Researchers conducted an experiment to test the effects of alcohol. Errors were recorded in a test…

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Q: To test the effect of alcohol in increasing the reaction time to respond to a given stimulus, the…

A: From the provided information, Level of significance (α) = 0.05 The difference values are as follow:…

Q: For approximately how many of these trips will he receive a tip over 25%?

A: Let X denote the amount of tips. Given that X follows N(mean = 21.3, SD = 7.5), then Z = (X -…

Q: An NHANES report gives data for 657 men aged 20-29 years. The BMI of these 657 men was ?⎯⎯⎯= 26. On…

A: Given Information: The BMI of these 657 men was x¯=26. Standard deviation σ=7.9 The objective is to…

Q: State Ho and H₂ in words and in symbols. Then determine whether the hypothesis test is left-tailed,…

A: Given A reports claim that lung cancer  accounts for at most  20% cancer diagnosis

Q: M1= 37 SS1=360 n1=11 M2= 43 SS2=576 n2=10 Assume two failed test and alpha= .05 What is the…

A: Given M1= 37 SS1=360 n1=11 M2= 43 SS2=576 n2=10

Q: Hi I'm sorry I didn't understand the part where it says card drawn is not a face card

A: In a standard deck there are 52 cards.

Q: 0 df1=4 S

A: Given:                                  Standard Deviation (S1​) = 100…

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Q: Suppose a woman has decided to retire as soon as she has saved $900,000. Her plan is to put $950…

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Q: Urns. There are n urns of which the rth contains r - 1 red balls and n -r magenta balls. You pick an…

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Q: Suppose X~Bin(100, ¹). (a) Compute the exact value for P(X ≤ 90). (Hint: you need to use the pbinom…

A: Note: According to Bartleby guidelines expert solve only one question and maximum three subpart of…

Q: Safeway puts out hundreds of turkeys in the weeks before Thanksgiving each year. Each weight varies…

A: given data  μ = 15σ = 1.4Z = 1.2; x = ?

Q: The mean exam score for 44 male high school students is 21.7 and the population standard deviation…

A: The given claim is that the male and females high school students have equal exam scores.

Q: A random sample of 16 observations from a normal population. The sample  standard deviation = 5 and…

A: Solution : Given that sample size n=16  sample standard deviation s=5 and  sample mean x¯=100 claim…

Q: A university interested in tracking its honors program believes that the proportion of graduates…

A: Given that, The sample size is, n = 200 The number of students have a GPA of 3.00 or below is, x =…

Q: 5. Let X, Y be iid random variables each with density fx(x) = for x > 1 and zero otherwise. (a) (b)…

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Q: A frequency table displaying professor Blount's last statistic test is shown. Find the best estimate…

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Q: is in Excel

A: Given are the details of Stock 1 and Stock 2 Stock 1 Stock 2 E(x) = 8.45% E(y) = 3.2% Var(x)…

Q: A professor wants to know whether or not there is a difference in comprehension of a lab assignment…

A: The data shows the scores the students received on a test given after the lab.

Q: A researcher wanted to determine which method would help smokers quit. He divided a group of 183…

A: Given:-

Q: Two different simple random samples are drawn from two different populations. The first sample…

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Q: 26. Which of the sets below corresponds to the shaded area of the given Venn Diagram?

A: here we have to choose right set for  given diagram

Q: Suppose scores on exams in statistics are normally distributed with an unknown population mean and a…

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Q: Which is the stronger level of significance, 0.01 or 0.001?   a. 0.001 This is the probability of…

A: In statistics, level of significance Is defined as the probability of making type 1 error. Type 1…

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

A: Given data:   Roller Coaster Screaming Demon Long Flume Method 1 50 54 47   52 46 43…

Q: Identify the distribution that applies to the following situation:  In constructing a confidence…

A: Given data In constructing a confidence interval you have 50 sample values And they appeared to be…

Q: Number of Farms A random sample of the number of farms (in thousands) in various states follows.…

A: According to the given information in this question We need to find 99% confidence interval