Write formal hypothesis statements Ho (null hypothesis) & Ha (alternate hypothesis) for the following four instances.

Generally, the common phrases (if using simple English) are: "is greater than", "is less than" "is not equal to" in alternate (Ha) statements. You can also use mathematical symbols too, (e.g., , etc) 1. Imagine you are a market intelligence analyst who is interested in investigating quality reviews for two SMART watches. One watch is from brand HH and the other from brand JJ. You speculate that brand HH probably has an average review rating of 4.4 out of 5, while brand JJ has an average rating of 4.2 out of 5 (which means lower than HH). Write down Ho and Ha based on your speculation. 2. Let's say that an average life for a vehicle is 15 years. But a quality professional thinks that cars who regularly gets serviced (e.g oil change etc) have a higher mean score. What should be the hypothesis of interest? 3. It is believed that using eco-friendly packaging increases the shelf-life of food products. Write Ho and Ha for this case (may just write hypothesis in simple English). 4. An engineer hypothesizes that the mean number of defects can be decreased in the manufacturing process of USB flash drives by using robots instead of humans for certain tasks. The current mean number of defective flash drives per 1000 is 32 (with all human tasks)