An African American woman approaches a pharmacist at the local drugstore near the hospital where she was given a prescription for chest congestion. She asks the pharmacist for oils in the store with camphor so she can rub it on her chest to help with her congestion. The pharmacist immediately tells her that to do so would be ridiculous and that she should not proceed with such a remedy but only use the medicine per her prescription. Did the pharmacist handle this communication correctly?

Requirements:

Prepare a master budget for each of the first three months of 2018; include the following component budgets (show supporting calculations as needed directly behind that budget, and round amounts to the nearest dollar):

1.) Monthly cash budgets.

2.) Budgeted income statement for the entire first quarter (not for each month).

3.) Budgeted balance sheet as of March 31, 2018

The branch manager of a nationwide bookstore chain (located near a college campus) wants to study characteristics of her store’s customers. She decides to focus on two variables: the amount of money spent by customers (on items other than textbooks) and whether the customers would consider purchasing educational DVDs related to graduate preparation exams such as the GMAT, CRE, or LSAT. The results from a sample of 70 customers are as follows: Amount spent; mean = $28.52, standard deviation = $11.39; 28 customers stated that they would consider purchasing the educational DVDs.

a. Construct a 95% confidence interval estimate for the population mean amount spent in the bookstore

b. Construct a 90% confidence interval estimate for the population proportion of customers who would consider purchasing educational DVDs

Assume the branch manager wants to of another store in the chain (also located near a college campus) wants to conduct a similar survey in his store. Answer the following questions:

c. What sample size is needed to have 95% confidence of estimating the population mean amount spent in this store to within plus/minus $2 if the standard deviation is assumed to be $10?

d. How many customers need to be selected to have 90% confidence of estimating the population proportion who would consider purchasing the educational DVDs to within plus/minus 0.04

Groups of dolphins were observed off the coast of Iceland near Keflavik in 1998. The data in the file dolphin_dat on the course website give the time of the day and the main activity of the group, whether travelling quickly, feeding, or socializing. The dolphin groups varied in size. Usually feeding or socializing groups were larger than travelling groups. (Sec. 8.2)

Source of data: Marianne Rasmussen, Department of Biology, University of Southern Denmark, Odense, Denmark.

Activity        Period  Groups
Travel  Morning  6
Feed    Morning 28
Social  Morning 38
Travel  Noon     6
Feed    Noon     4
Social  Noon     5
Travel  Afternoon       14
Feed    Afternoon        0
Social  Afternoon        9
Travel  Evening 13
Feed    Evening 56
Social  Evening 10

Refer to Exercise 1 above.

1. By hand, draw a bar graph depicting the sample proportion of dolphins feeding for the morning and evening periods. Add a whisker to the top of each bar to denote the standard error of the sample proportion.
2. Examine the bar graph you produced for part (a). Briefly comment on whether there appears to be a difference proportion.
3. Conduct the appropriate hypothesis test for a two-by-two contingency table and report the P-values for Fisher’s exact test and the asymptotic chi-square distribution approximation for this test. Compare these results with your answer to part (b) in Exercise 1.

9. A flowering plant species grows on the mainland near the coast. One summer, a tropical storm
blows seeds from this population several hundred miles out to sea. Some of the seeds land on an
island, where they form a new population. Describe two ways that speciation could occur in this
situation. Include the concepts of genetic drift, gene pool, reproductive isolation, and selection in your
description.

You live near a Mac Donnel’s and want to estimate the proportion, p, of your neighbors who go there on a typical day.

a. How many people in your neighborhood should you include in your random sampling to be 94% sure that you are within 1% of the population proportion? ___________.

b. If 23 out of 45 of Crista’s neighbors visit Mac Donnel’s every day, how many people should be included in your random sampling to be 86% sure that you are within 2% of the population proportion? _________

True/False: There are usually less mutations near the transcription start site of the variable region for an antibody.

Which of the following is most analogous (or most closely matches) to the germinal center in the secondary lymphoid tissue?

a. the cortex of the thymus

b. the spongy tissue of the bone

c. the medulla of the thymus

d. the plasma of the bone marrow

Which of the following is not part of the T-cell receptor complex?

a. alpha chain

b. CD3 complex

c. beta chain

d. IgA

find the following critical t-scores

Near the beginning of the semester, you administered a survey to 10 students. Suppose we wanted to use your sample to calculate the mean age of college students. What are the critical t-scores for the mean age using your sample?

80% CI: t =

90% CI: t =

99% CI: t =

The Vintage Restaurant, on Captiva Island near Fort Myers, Florida, is owned and operated by Karen Payne. The restaurant just completed its third year of operation. During that time, Karen sought to establish a reputation for the restaurant as a high-quality dining establishment that specializes in fresh seafood. Through the efforts of Karen and her staff, her restaurant has become one of the best and fastest-growing restaurants on the island. To better plan for future growth of the restaurant, Karen needs to develop a system that will enable her to forecast food and beverage sales by month for up to one year in advance. Table below shows the value of food and beverage sales ($1,000s) for the first three years of operation:

Perform an analysis of the sales data for the Vintage Restaurant. Prepare a report for Karen that summarizes your findings, forecasts, and recommendations. Include the following:

1.A time series plot. Comment on the underlying pattern in the time series.

2.Using the dummy variable approach, forecast sales for January through December of the fourth year.

Assume that January sales for the fourth year turn out to be $295,000. What was your forecast error? If this error is large, Karen may be puzzled about the difference between your forecast and the actual sales value. What can you do to resolve her uncertainty in the forecasting procedure?

Hint: Run the first regression model with only the monthly dummy variables against Sales and the second regression model with Month number and monthly dummy variables against Sales. Compare the two models and select the best model for your forecast.

PLEASE SHOW YOUR CALCULATION AND FORMULAS!!!