A magazine includes a report on the energy costs p The article states that 14 randomly selected 32-inch $3.27 Assume the sample is taken from ormall

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A:

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Q: (a) Choose the correct null and alternative hypotheses below. OA. Ho: P₁ P₂ versus H₁: P₁ P2 OB. Ho:…

A: n1=249,n2=306,x1=116,x2=138

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A: The mean is 45 and the standard deviation is 9.

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A: (1)

Q: Here is a sample data set. 335.4 336.2 348.8 352.9 353.9 361.7 362.7 367.4 368.1 368.4 373.8 380.7…

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Q: Insurance Company A claims that its customers pay less for car insurance, on average, than customers…

A: n1=15,x1¯=150,s1=14n2=6,x2¯=157,s2=11

Q: histogram below. 36.5, and 40.5.

A: Summary:-Hence the correct option is Yes , because the histogram has two peaksExplanation:

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A: n1=12,x1¯=82.3,s1=4.7n2=16,x2¯=76.9,s2=6.8

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A: It is given thatFor sample 1:n1=13,x1¯=23.9,s1=1.9n2=6,x2¯=24.7,s2=1.6α=0.01