(Answered) September energy consumption levels

Statistics

Question 1: In one region, the September energy consumption levels for single-family homes are found to be normally distributed with a mean of 1050 kWh and a standard deviation on 218 kWh. Find P45, which is the consumption level departing the bottom 45% from the top 55%.

Question 2: Scores on a test are normally distributed with a mean of 70 and standard deviation of 11.5. Find P81, which separates the bottom 81% from the top 19%

Please show step by step details and formulas.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91807194
Price:- $10

Verified Expert

Priced at $20 Now at $10, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

In a recent year 8032844 male students and 9381579 female

In a recent year, 8,032,844 male students and 9,381,579 female students were enrolled as undergraduates. Receiving aid were 64.1% of the male students and 65.7% of the female students. Of those receiving aid, 41% of the ...

A laboratory worker finds that the 3 of his blood samples

A laboratory worker finds that the 3% of his blood samples test positive for the HIV virus. In a random sample of 70 blood tests, what is the mean number that test positive for the HIV virus? (Round your answer to 1 deci ...

A hotel claims thatnbsp95 of its customers are very

A hotel claims that 95?% of its customers are very satisfied with its service. Complete parts a through d below based on a random sample of seven customers. What is the probability that more than six customers are very? ...

A researcher records the following body mass index bmi

A researcher records the following body mass index (BMI) scores for a group of participants: 29.1 1.3 (M SD). Participants who score between 26 and 30 on this scale are categorized as overweight. What proportion of parti ...

Ann and bill play rock-paper-scissors each has a strategy

Ann and Bill play rock-paper-scissors. Each has a strategy of choosing uniformly at random out of rock, paper, and scissors every round (making independent selections each round). Each round can end in a win, loss, or a ...

When carolinas house burned down she lost household items

When Carolina's house burned down, she lost household items worth a total of $145,000. Her house was insured for $245,000, and her homeowner's policy provided coverage for personal belongings up to 70 percent of the insu ...

The p-value for a two-sided test of the null hypothesis h0

The P-value for a two-sided test of the null hypothesis H0: μ = 50 is 0.035. Does the 95% confidence interval include the value 50? Why? Does the 99% confidence interval include the value 50? Why?

An all-equiry business has 175m shares outstanding selling

An all-equiry business has 175M shares outstanding selling for $20/share. Management believes interest rates are unreasonably low and decides to execute a leveraged recapitalization. It will raise $1B in debt and repurch ...

An investor considers investing 10000 in the stock market

An investor considers investing $10,000 in the stock market. He believes that the probability is 0.30 that the economy will improve, 0.40 that it will stay the same, and 0.30 that it will deteriorate. Further, if the eco ...

The probability that a football game will go into overtime

The probability that a football game will go into overtime is 15%. What is the probability that exactly two of three football games will go to into? overtime? Round to the nearest thousandth.

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert