What is the step-by-step solution to this problem? Imagine you are a researcher interested in examining the impact of taking daily walks on a person's level of happiness (sense of well-being). You decide to use a well-known scale of sense of well-being, which includes the average value people score (µ = 68) and the standard deviation (σ = 9). What is the probability that you would randomly select a sample of n =36 participants that had a mean within 3 points of the population mean? In other words, p (65 < M < 71)?

Q: Can someone solve this using Microsoft Excel.

A: a) The required formula is calculated as follows: Px≤x0=∫0x013e-x3dx=13e-x3-130x0=-e-x30x0=1-e-x03

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Q: need help with this thank you

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.