Question

Asked Feb 21, 2019

Isabella was told that her score on an aptitude test was 3 standard deviations above the mean. If test scores were approximately normal with μ=77 and σ=6, what was Isabella's score? Do not include units in your answer. For example, if you found that the score was 77 points, you would enter 77.

Provide your answer below:

Step 1

In this question we have given that test scores follow the normal distribution with mean = 77 and population standard deviation = 6. Isabel...

Tagged in

Q: See attachment for question.

A: Introduction to binomial distribution:Consider a random experiment involving n independent trials, s...

Q: Question b

A: B)The variables whose level are set by the experimenter is called as the factor of an experiment. It...

Q: I asked this question before, and got an answer, but I have a question about the response that was g...

A: The formula that you shared from the text book is used for time-value-of-money calculations. Such a ...

Q: directions construct a confidence interval of the population proportion at the given level of confid...

A: Confidence interval:It is given that n = 500 and x = 120.The (1−α)% confidence interval for proporti...

Q: The following joint probability distribution summarize the doctoral degrees conferred in the social ...

A: In this question, a table has given to us which shows the joint probability distribution, based on w...

Q: Part a, b, c

A: Null and alternative hypothesis:Null Hypothesis:A null hypothesis is a statement regarding the popul...

Q: What is the condition on the probability of success p that will guarantee the histogram of a binomia...

A: The binomial distribution has p - probability of success and n- number of trails. The binomial distr...

Q: In a recent court case it was found that during a period of 11 years 851 people were selected for gr...

A: It is given that a particular ethnicity in the population is 40%. From that ethnicity, 80% of 851 pe...

Q: A recent study showed that the modern working person experiences an average of 2.1 hours per day of ...

A: Confidence interval:The (1-α) % confidence interval for population mean µ, when σ is known is given ...