Let's shake on it: A random sample of 12-ounce milkshakes from 11 fast-food restaurants had the following number of calories. 504 613 Send data to Excel 476 580 Part: 0/3 Part 1 of 3 510 375 399 642 Assume the population standard deviation is o - 88. 608 473 700 Explain why it is necessary to check whether the population is approximately normal before constructing a confidence interval. It is necessary to check whether the population is approximately normal because (Choose one) X

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A: given data, population standard deviation:σ=91x¯=1950n=80CI=0.95α=1-0.95=0.05

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A: given data normal distributionμ = 155σ = 7

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A: Given: The given data are: xi : 4 5 7 8 10 12 12 22                     yi : 12 14 16 15 18 20 24 19

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Q: iconic memory is a type of memory that holds  visual information for about half a second (0.5…

A: I used SPSS for calculations. Assuming 0.05 (5%) significance level.

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A: given data least square regression equation : log(y^) = 7.3-1.5xfor x = 4.8predicted value of y = ?

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A: Convert the following normal random variable to a standard normal variable and vice versa.

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A: Mean(µ) = 65Standard deviations (σ) = 6X ~ N (µ, σ )= N(65,6)

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A: given data claim : μ < 13.04n = 100x¯ = 12.75s = 2

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