(Answered) Question biology and environmental science a quahog is a

Statistics

Question: Biology and Environmental Science A quahog is a chewy Atlantic hard-shell clam with a blue-gray shell. Quahogs have different names, depending on size; for example, the width of a littleneck clam is under 5 centimeters (across the shell). The historical mean width of a littleneck is 4.75 cm. Following a recent oil spill off the coast of Maine, a random sample of 46 littlenecks was obtained and the width of each was recorded. The summary statistics were x¯ = 4.66 cm and s = 0.25 cm.

a. Use a one-sided, left-tailed hypothesis test to show that there is evidence to suggest the mean width of littlenecks has decreased. Assume the population of littleneck widths is normal and use a = 0.01.

b. Explain why there is statistical evidence that the population mean has decreased even though the sample mean (4.66) is so close to the historical mean (4.75).

c. Find bounds on the p value associated with this hypothesis test.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92559981
Price:- $15

Verified Expert

Priced at $30 Now at $15, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Flyers inc just paid an eps of 49 this year flyers is

Flyers, Inc., just paid an EPS of $4.9 this year. Flyers is expected to maintain a retained earnings ratio of 50% and ROE of 5.5% for the next five years. After the fifth year, ROE is expected to decrease to 3.3%. Applyi ...

In an intro psychology class all 83 students have completed

In an Intro Psychology class, all 83 students have completed an aggression rating scale. The possible ratings range from 1-7 with low scores indicating low aggression. Results showed that the average rating was 4.23 with ...

There are 20 total socks 10 white and 10 black this makes

There are 20 total socks, 10 white and 10 black. This makes 10 total matching pairs of 5 pair of white and 5 pair of black. If each time you pick a sock from the drawer a sock just like it magically replaces it, what is ...

Question 1a consumer analyst reports that the mean life of

Question 1 A consumer analyst reports that the mean life of a certain type of alkaline battery is no more than 63 months. Write the null and alternative hypotheses and note which is the claim. A)Ho: μ ≤ 63 (claim), Ha: μ ...

Explain how each of the following situations would affect

Explain how each of the following situations would affect interest rate and consequently, the equity market. a) Sudden increase of capital expenditure by the businesses b) Decrease of household savings in the market c) S ...

In developing their warranty policy a washing machine

In developing their warranty policy, a washing machine company estimates that over a 1-year period 15% of their new washing machine will need to be repaired. You and your neighbor both purchase a new washing machine. 1) ...

A large furniture retailer wants to conduct a customer

A large furniture retailer wants to conduct a customer satisfaction survey. Customers are divided into groups based on the amount of money they have spent at the retailer's stores in the past year: less than $2000, from ...

1 suppose that a company selects two people who work

1. Suppose that a company selects two people who work independently inspecting two-by-four timbers. Their job is to identify low-quality timbers. Suppose that the probability that an inspector does not identify a low-qua ...

1 suppose you are the manager of a bank that has 15 million

1. Suppose you are the manager of a bank that has $15 million of fixed-rate assets, $30 million of rate-sensitive assets, $25 million of fixed-rate liabilities, and $20 million of rate-sensitive liabilities. Conduct a ga ...

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 ...

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