Compute the value of the test statistic and p value

Assignment Help Basic Statistics
Reference no: EM13126865

ary Jo Fitzpatrick is the Vice President for Nursing Services at St. Lukes Memorial Hospital. Recently she noticed in the job postings for nurses that those thar are unionized seem to offer higher wages. She decided to investigate and gather the following sample information. Would it be reasonable for her to conclude that union nuerses earn more? Use the .02 significance level. 2. The decision rule is to reject H0 if Z greater than ___? 3. Compute the value of the test statistic. The test statistic is Z=___. 4. What is the p value?

GROUP MEAN WAGE SAMPLE STANDARD DEVIATION SAMPLE SIZE
Union
$20.75 $2.25 40
Non union $19.80 $1.90 45

Reference no: EM13126865

Questions Cloud

How many liters of h2 would be formed : how many liters of H2 would be formed at 528 mm Hg and 12 degrees celcius if 28.0g of zinc was allowed to react
Which form of business firm would you recommend : Which form of business organization would you recommend to Dr. Langholz and Dr. Clark? Include taxation impact and advantages of this form.
Closest approach between two boats : Mike, who is standing on the deck of a yacht that is traveling due west at 6km/h, sees a sailboat sailing southwest at 4km/h, 3 km northwest of the yacht. How close to each other do these boats get?
How many liters of c02are formed : Propane gas (C3H8) is used as a fuel in rural areas. How many liters of C02are formed at STP by the complete combustion of the propane in a container with a volume of 15.0 L
Compute the value of the test statistic and p value : Use the .02 significance level. 2. The decision rule is to reject H0 if Z greater than ___? 3. Compute the value of the test statistic. The test statistic is Z=___. 4. What is the p value?
Determining pilot off course : A pilot, attempting to fly from Middletown to Westburg, a distance of 200 miles, notices after flying 180 miles that West burg is still 35 miles away because the heading was off by a few degrees.
Concerning the overall fairness : The auditor's judgment concerning the overall fairness of the presentation of financial position, results of operations, and cash flows is applied within the framework of :
Determining velocity and acceleration : You are standing on a hotel balcony 30 feet up from the ground. You want to throw your key to someone standing outside the hotel on the ground. You throw it angled upward with an initial velocity of 55 ft/sec. Assume that the acceleration due to g..
Find standard deviation of number of male students : If a class of 30 students is chosen at random from the university populaton, find the mean of the number of male students. Find the standard deviation of the number of male students.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Hypothesis testing-use of cellular phones

The use of cellular phones in automobiles has increased dramatically in the last few years. Of concern to traffic experts, as well as manufacturers of cellular phones

  Determining fields and ideals

Let F be a field and f(x), g(x) be elements of F[x]. Show that f(x) divides g(x) if and only if g(x) is an element of .

  Probability-binomial distribution

Find the probability that the number of who consider themselves basketball fans is :

  Hypothesis test for mean with population standard deviation

Set up a null and alternative hypothesis to test whether this sample is falling below expectations.

  Why observed value is not unusual for individual light bulb

Explain why an observed value of 250 hours is not unusual for an individual light bulb, even though it is outside the confidence interval you calculated.

  Determining regression line and chi square

David Gallano, a wine merchant, has collected opinions on grape wine quality from a sample of his customers. These customers tasted wine made from grapes grown in three regions of the country.

  Sentiment for increasing the speed limit

Does this data indicate that the sentiment for increasing the speed limit is different for the two groups of residents? Let p1 refer to the urban population.

  Difference between histogram and dot plot

Critically illustrate out the difference between a histogram and a dot plot. When might a dot plot be better than a histogram?

  Find the joint density the region where it is non-zero

Represent (X,Y) as a function of (U,V). Find the joint density f(u,v) for (U,V) (Hint: take into account the region where it is non-zero). Calculate f(1,0) and input it as the answer.

  Hypothesis test for one population proportion

What is the null and alternative hypothesis? What is your final conclusion?

  Question of exponential smoothing

A manufacturer of printed circuit boards uses exponential smoothing with trend to forecast monthly demand of its product. At the end of December, the company wishes to forecast sales for January.

  Random assignment and equivalence

If you randomly assign participants to groups, can you suppose the groups are equivalent at the beginning of the study?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd