A car manufacturer claims that the miles per gallon for a, Ask an Expert

Statistics

A car manufacturer claims that the miles per gallon for a certain model has a mean equal to 40.5 miles with a standard deviation equal to 3.5 miles. Use the following data, obtained from a random sample of 15 such cars, to test the hypothesis that the standard deviation differs from 3.5. use alpha=0.05 assume normality.

37.0 38.0 42.5 45.0 34.0 32.0 36.0 35.5

38.0 42.5 40.0 42.5 35.0 30.0 37.5

a. Solve using the p-value approach.

b. Solve using the classical approach.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9991704

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Carrie ds has 67 million shares of common stock outstanding

Carrie D's has 6.7 million shares of common stock outstanding, 3.7 million shares of preferred stock outstanding, and 27.00 thousand bonds. If the common shares are selling for $29.80 per share, the preferred share are s ...

Matterhorn inc had the following sales for the past six

Matterhorn, Inc. had the following sales for the past six months. Matterhorn collects its credit sales 30% in the month of sale, 60% one month after the sale, and 10% two months after the sale. Cash Sales Credit Sales Ja ...

The weights of ice cream cartons are normally distributed

The weights of ice cream cartons are normally distributed with a mean weight of 20 ounces and a standard deviation of 0.5 ounces. You randomly select 25 cartons. What is the probability that their mean weight is greater ...

1 if you deposited 2000 today in an account that gave you 5

1. If you deposited $2,000 today in an account that gave you 5% APR compounded interest, how much would you have in 10 years? 2. Suppose you want $5,000 in your bank account when you graduate in four years, how much woul ...

A diamond can be classified as either gem qulaity or

A Diamond can be classified as either gem qulaity or industrial grade. Suppose that 92% of diamonds are classified as industrial grade. Would it be unusual if atleast one of five randomly selected diamonds is gem quality ...

Determine the type of distribution for the following

Determine the type of distribution for the following situation: Draw marbles from a bag which contains 5 red marbles, 6 blue marbles and 4 green marbles with replacement until you get a blue marble. a) Binomial b) Pois ...

At station a the egg hatch rate computed from a set of 100

At station A, the egg hatch rate (computed from a set of 100 eggs at a time) is known to follow approximately a normal distribution with mean 62% and standard deviation 5%. At station B, the egg hatch rates are known to ...

Confidence intervals ci are one of the simpler forms of

Confidence intervals (CI) are one of the simpler forms of inferential statistics. What does the CI represent? And why does our knowledge of the Central Limit Theorem (CLT) and the empirical rule let us understand why the ...

On average the parts from a supplier have a mean of 975

On average, the parts from a supplier have a mean of 97.5 inches and a standard deviation of 12.2 inches. Find the probability that a randomly selected part from this supplier will have a value between 85.3 and 109.7 inc ...

Determine the internal rate of return for a project that

Determine the internal rate of return for a project that costs -$149,500 and would yield after-tax cash flows of $23,000 the first year, $25,000 the second year, $28,000 the third year, $30,000 the fourth year, $34,000 t ...

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