What is the probability of making a Type I error?

Q: the problem is the type2 error's probability less than 0.1

A: The null and alternate hypotheses areH0:μ=15H1:μ≠15 True mean is μ=14.5 The probability of…

Q: How many kids? In a survey 46,200 women were asked how many children they had. The results were as…

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Q: Assume that the causes of a disease are 29% of the time associated with diet and 71% of the time…

A: Introduction to geometric distribution:Consider a random experiment involving n repeated independent…

Q: Discuss the applications of error probability?

A: Before discussing the applications of error probability, first we discuss about the error…

Q: The probability that a person with certain symptoms has hepatitis is 0.8. The blood test used to…

A: event A : has hepatitis event+ve : test positive     P(A) = 0.8 P(A') = 1 -0.8 =0.2 P(+ve|A) = 0.90…

Q: The random variables X and Y have joint pdf (x(1+3y²) fxy (x, y) = 0 < x < 2, 0< y < 1 4 0,…

A: Solution: The joint pdf of (X,Y) is given by  fXY(x,y)=x(1+3y2)4     0&lt;x&lt;2,  0&lt;y&lt; 10…

Q: What does the power of a hypothesis test tell you? How is it related to the probability of making a…

A: Solution: It is required to mention what does the power of a hypothesis test tell you? How is it…

Q: What is the expected expense of the machine being used 34 hours per week?

A: Regression line are used to predict the variable. It is calculated by the combined value of…

Q: What is the probability of a z-score less than -0.02?

A: It is given that z-score is less than –0.02.

Q: What is the expected number of doubles that you can get when two dice are rolled 20 times

A: When one dice rolled, sample space: {1,2,3,4,5,6}

Q: Is ultrasound a reliable method for determining the gender of an unborn baby? There is accompanying…

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Q: e blood test used to confirm this diagnosis gives positive results for 94​% of people with the…

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Q: t is the difference between a t-test and a z-test and What do you mean by Dependent events in…

A: Dependent Events in Probability t-test  z-test

Q: Define the concept of expected value?

A: The expected value of the random variable is nothing but the mean value of the random variable. It…

Q: The alpha level that a researcher sets at the beginning of the experiment is the level to which he…

A: The alpha level is also known as type I error.

Q: difference between

A: Type I error A Type I error means rejecting the null hypothesis when it’s actually true. It means…

Q: WHAT IS THE PROBABILITY OF Randomly selecting someone who is between 20 and 34 years old

A: Given that  National age distribution of pie chart.   The people between 20-24 years = 5.2% The…

Q: How can you find the expectation value of a discrete random variable X?

A: The expected value of discrete random variable is X is the summation of the product of the values of…

Q: The power of a statistical test is 1 - Probability(type II error). O True O False

A: The study is about the power of a statistical test.

Q: How do you find the expected value of a random variable

A: A random variable is a variable that takes numerical values for each outcome of an experiment.  A…

Q: What is the probability that a randomly selected individual is less likely to buy a product…

A: Probability = No. of favorable events / Total no. of events in the sample space

Q: As Bayes' Theorem illustrates, when you're testing for a rare event (e.g. a rare disease), it's…

A: A false positive is typically referred to as a Type I error in statistics. When someone wrongly…

Q: What is the probability of a paint defect which results from the proper amount of paint, but uneven…

A: We need to find the probability of a paint defect which results from the proper amount of paint, but…

Q: The sensitivity of a medical test is the true positive rate. In other words, the sensitivity is the…

A: Question 4)  X is the number of people who receive false positives. The sample size is 30. So, the…

Q: The significance level, a, is the probability of making a type Il error. True False

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Q: How do you find experimental probability

A: Theoretical probability: This is the probability value that is expected to happen. It is the ratio…

Q: There is a disease that affects 1/1000 people. A blood test for the disease has a false positive…

A: Given that

Q: A man claims to have extrasensory perception (ESP). As a test, a fair coin is flipped 22 times, and…

A: A man claims to have extrasensory perception (ESP). As a test, a fair coin is flipped 21 times…

Q: A female student flips a coin and rolls a die. Assuming statistical independence, what is the…

A: There are 2 possible outcomes when a coin is tossed. Head and Tail. Let us denote H=Head and T=tail…

Q: There were 49.7 million people with some type of long-lasting condition or disability living in the…

A: Givenp=19.3%=0.193n=1000Let "x" be the no.of people having a…

Q: A type I error is the probability that you reject the null hypothesis but the null hypothesis is…

A: Type I error: reject the true null hypothesis.

Q: The probability of a positive reaction of the patient to a test developed against a disease is 0.4.…

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Q: A 15 line note on Probability theory in statistical inference.

A: Probability Theory: Probability is known as the base level of statistics. In most basic terms, it…