5) Entrance to, and exit from, a large departmental store is via one of four sets of doors. The number of customers entering or leaving the store is counted at each set of doors for a period of time with the following results. Set of doors North 327 South 402 East 351 West 380 Number of customres It is claimed that the number of customers using each of the four sets of doors is the same. Investigate the claim.

Q: I also Need help with part D please

A: The correlation coefficient is 0.8137.

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Q: Evaluate the following integral:

A: Given,         ∫2416-25n2dn

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Q: Evaluate then simplify: Stan (4p) sec (4p)dp

A:

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Q: Calculate the limit algebraically: x³ + 8 lim x→-2 x² + 7x + 10

A: Consider the given expression, If we substitute  in the expression we get  form. so, use L-hospital…

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A:

Q: could you provide an example please?

A: Let us take:  u→=0, 0, 0v→=1, 2, 3w→=4, 5, 6

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A: Step 1:For a triathlete as well as it was loosely more expedient to aim for a balanced level of…

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A: Given  12 + 22 + 32 + ⋅ ⋅ ⋅ + n2 = n(n+1)(2n+1)6Step 1   P(1) is true             P(1) = I2 = 1   ⇒…

Q: Thank you.

A: We have to find