Apsychologist obtains a random sample of 20 mothers in the first trimester of their pregnancy. The mothers are asked to play Mozart in the house at least 30 minutes each day until they give birth. After 5 years, the child is administered an IQ test. It is known that IQs are normally distributed with a mean of 100. If the IQs of the 20 children in the study result in a sample mean of 104.2 and sample standard deviation of 14.5, is there evidence that the children have higher IQs? Use the a=0.10 level of significance What type of hypothesis test is appropriate to conduct for this research? A. Hypothesis test on a population standard deviation B. Hypothesis test on a population mean OC. Hypothesis test on a population proportion Determine the null and alternative hypotheses. V Ho H₂ V (Type integers or decimals. Do not round.)

Q: Solve for X. X = --x-17] X = I.

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Q: y"'+ 4y"" + 4y" =0

A: Given the differential equation is y"" + 4y"' + 4y" = 0. Here the auxiliary equation is m4 + 4m3 +…

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Q: Find all solutions of the equation z3 + 64z = 0.

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A: Solve by logarithmic

Q: Solve V8 - 3w = 4 www www www www ww www %3D wwww www

A: Isolate w to obtain its value.

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Q: 1. Solve : 5(3**2) = 125

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Q: Solve 2 +125=0

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Q: Solve 3*+1=9*=27

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Q: Distinguish the number of solutions.

A: Given that,

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A: Given that, the graph of the function is fx=4x and also given that, the function shifted down 6…

Q: Solve for x+69=89

A: Here we want to solve  x + 69 = 89

Q: How to solve simultaneous equations?

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Q: How do I solve?

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Q: 3. Solve 25t+l > 125*,

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Q: How do I solve?

A: A) Since every year, total reserves decrease by 16 billion barrels of oil, therefore: R=2000-16t,…

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A: If two secants are drawn to a circle from one exterior point, then the product of the external…

Q: у" + 10y" + 25у" %3D0

A: Given the differential equation y'''' + 10y''' + 25y'' = 0. Here the auxiliary equation is m4 + 10m3…

Q: solve  (x+2)2=16 x=

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Q: How do I solve?

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Q: -3.8z + 2.6y = 4.1 5.2r + 6.2y = 3.2

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Q: 2

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Q: How do I solve?

A: Given:       y>12x−1y<−4x−2

Q: How do I solve?

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Q: How do I solve?

A: Given: P0=15800, r=5% we know that if initial population is P0 and annual growth rate is r% per year…

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Q: 3. Solve 254t+1 > 125²*

A: Taking logarithm to the both sides of the inequality, we get the solution.

Q: How do I solve?

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