Looking help with Statistics

MY HW IS SPECIAL PROBLEM A: https://docs.google.c...1faeT98vX9IsJnbUG8-w

Can someone use babby steps to help me get through this? I plotted the data. I have the years in list 1 and minimum salary is list 2 and average in list 3 except i put 0 for NA. thank you in advance

as a part of her statistics coursework, Dan records her bus journey times to school on a random samp

ven diagram distribution graphs

Southwest Consulting is a well established company with thousands of employees and they want to estimate the average age of their workers. A sample of 32 employees was taken. Given that the population standard deviation is 12.09 and the sample mean is 43.66. What is the range of values for a 95% confidence interval.

Given below is the formula for computing the confidence interval. Fill in the missing values. For full marks your answer should be accurate to at least two decimal places.

Suppose X is a Poisson random variable with parameter lamna, find Var(X).

I am preparing for my AS exams, and i really need help with Stats. My exam board is AQA and the module would be stats 1B.

I'm a bit stuck on this question if anyone can help me?

Last year a new mobile phone company, Sonia, produced and stocked shops with 200,000 of their new phone, Sonia 1. The distribution of the battery times is approx- imately normal. Sonia claims that the mean battery time is 16 hours. If the claim is true, which of the following would be more likely? (a) A random sample of 10 phones having a mean battery time greater than 18 hours or (b) A random sample of 50 phones having a mean battery time greater than 18 hours Justify your answer in no more than five sentences.