# I need help with this problem about an oceanographer

Anonymous
account_balance_wallet \$5

### Question Description

1.     An oceanographer wants to test, on the basis of a random sample size of 20, whether the average depth of the ocean in certain areas is greater than 75 fathoms. A the .10 level of significance, what will the oceanographer decide if she observes a sample mean of 75.5? Assume that the population standard deviation is 1.75. (Also, compute the p-value)

ipesuni
School: University of Maryland

We have

Null Hypothesis:u=75 fathom

Alternative Hypothesis:u>75 fathom

Given mean,m=75.5

Standard deviation,d =1.75

Sample size,n=20

Calculating the test statistic:

The degree of freedom =20-1=19,

The critical value corresponding to .1 significance level is 3.8834

The p value corresponding to t=1.278 and degree of freedom is ..1083

As the p value is greater than the significance level therefore we accept the null hypothesis and accept that the average depth in the certain ocean is not  greater than 75 fathom.

flag Report DMCA
Review

Anonymous
Tutor went the extra mile to help me with this essay. Citations were a bit shaky but I appreciated how well he handled APA styles and how ok he was to change them even though I didnt specify. Got a B+ which is believable and acceptable.

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors