The Pyramids of Giza Are One of the Most Visited

question 10

Essay

The Pyramids of Giza are one of the most visited monuments in Egypt. The number of visitors per quarter has been recorded (in thousands) as shown in the accompanying table: $$\begin{array}{l}\quad\quad\quad\quad\quad\quad\quad\quad\quad\text { Year }\\\begin{array} { | l | c c c c | } \hline \text { Quarter } & 1995 & 1996 & 1997 & 1998 \\\hline \text { Winter } & 210 & 215 & 218 & 220 \\\text { Spring } & 260 & 275 & 282 & 290 \\\text { Summer } & 480 & 490 & 505 & 525 \\\text { Autumn } & 250 & 255 & 265 & 270 \\\hline\end{array}\end{array}$$ a. Plot the time series.
b. Discuss why exponential smoothing is not recommended as a forecasting method in this case.
c. Calculate the four-quarter centred moving averages.
d. Use the moving averages computed in (c) to calculate the seasonal (quarterly) indexes.
e. Use the seasonal indexes computed in (d) to deseasonalise the original time-series data, and plot the deseasonalised time series.
f. Use regression analysis to develop the trend line.
g. Use the seasonal indexes calculated in (d) and the linear trend calculated in (f) to forecast the number of visitors in the next four quarters and describe the seasonal fluctuations in the number of visitors.

Explain the role of positive psychology in promoting human strengths and virtues.

Identify the impact of social and religious activities on health and lifespan.

Describe the effect of positive emotions and well-being on helping behavior and life satisfaction.

Comprehend how exercise influences neurotransmitter levels and stress resilience.

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Definitions:

Newest Medications

The latest drugs and pharmaceuticals developed and introduced into the market for the treatment of various health conditions.

Tricyclics

A class of antidepressant drugs used to treat depression, characterized by their three-ring chemical structure.

Antidepressant Medications

Drugs prescribed to treat symptoms of depression by adjusting the levels of certain chemicals in the brain.

Publication Bias

The phenomenon where positive or significant results are more likely to be published, leading to a skewed representation of research findings in the literature.