Based on historical data, your manager believes that 26% of the company's orders come from first-time customers. A random sample of 30 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is greater than 0.31? Use the normal table and

Q: Can you explain how you found part b? It does not make sense to me

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Q: Hey, wondering if I could get some help with this problem?

A: The expectation of a continuous random variable X is given by EX=∫-∞∞xfxdx. Where,fx is the…

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Q: Answer this problem correctly

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Q: I can't read this to make it out in order to understand this question.

A: Let's find function is linear or quadratic.

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A: Yes your work is correct. Well done.

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Q: Noah says, "I worked the problem from left to right and ended up with `20-45x`."

A: NO, I don't agree with Noah. His approach is incorrect.

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Q: Can someone help me answer question 4 ?

A: Given that  The number of classes (X) a student takes in a given semester follows the following…

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A: We’ll answer the first question (#4) since the exact one wasn’t specified. Please submit a new…

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Q: Could you further explain how you got this?

A: Given data :  n = 4 u = 35000 o = 5000 P(x > 40000) = ?

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.