In the standard normal distribution, what is the area to the left of z=-0.64? A. 0.0212. B. 0.2611. C. 1.0235. D. 0.8821.

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Q: I need an answer from you, bro. I am in a hurry, please.

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Q: z

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A: Step 1: Step 2: Step 3: Step 4: Step 5:  Step 6: Step 7: Step 8:

Q: 11.1.3.2

A: Detailed explanation:Here are the steps:State the hypotheses:Null Hypothesis (H0): The mean time…