Question
Which of the following scenarios demonstrates an
appropriate application of time series analysis?Solution
Time series analysis excels in modeling data where observations are collected at regular intervals. Predicting stock prices is a classic example where past trends, seasonality, and volatility inform future price movements. Techniques like ARIMA or exponential smoothing can model these dynamics effectively. Time series forecasting aids traders and investors in making data-driven decisions. Why Other Options Are Wrong : A) Determining customer satisfaction scores : Survey responses are typically not time-dependent, making time series analysis irrelevant. C) Estimating employee turnover : This is better suited to logistic regression or predictive modeling. D) Identifying clusters : Clustering techniques like k-means focus on grouping, not time-based trends. E) Conducting hypothesis testing : This evaluates statistical significance rather than leveraging temporal data.
- Anita used 35% of her salary for groceries, 50% of the rest on house rent, and saved the remaining amount. If her savings are Rs. 1500, then how much did s...
Teena decided to donate 10% of her salary as a charity. On the day of donation she changed her mind and donated Rs 3680 which was 92...
P gave 70% of the amount he had to Q. Q gave 2/5th of that amount to R. After paying Rs.260 to the shopkeeper out of the amount he gets from ...
If the length of a rectangle is increased by 10% and the area is unchanged , then its corresponding breadth must be decreased by?
...Preeti spends 35% of her monthly income on consumable items. Her annual income is Rs. 5.4 lac. What is the total amount that Preeti spends on consumable...
If x is 80% of y, then what percent of 2x is y?
Anuj allocates 45% of his income towards rent, and then spends 60% of the remaining amount on his studies. After these expenses, he saves Rs. 1650. Wha...
- The score of Arjun is 45% more than that of Tarun. The score of Suresh is 140 more than the difference between Arjun and Tarun. If Suresh scored 275 marks,...
A man spends 75% of his income. His income increases by 20% and his expenditure also increases by 10%. Find the percentage increase in his savings.
- The market value of a laptop falls by 8% in the first year and 15% in the second year. If the value after two years is Rs. 19,320, find the original price.