A random sample of 15 observations taken from a population that is normally distributed produced a sample mean of 42.4 and a Standard deviation of 8. Find the range for the p-value and the critical and observed values of tfor each of the following tests of using, a = 0.01 Use the distribution table to find a range for the p-value. Round your answers for the values of three decimal places H0 : mu = 46 versus H1 : mu < 46 =

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A: The provided information are:

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A: Answer  By using the given data:  Mean =56 Standard deviation = 6 We know that Z-score: Z= [x- μ]/σ…

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A:

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A: We have given that  X~N( mu , sigma^2) Mu= 85 ,sigma =6.8 Z-score = (x-mu )/sigma

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A: Standard deviation of sample mean is also know as Standard error

Q: The weights of a certain dog breed are approximately normally distributed with a mean of u 47…

A:

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A: N=225,x¯=300,s=75,μ=288,α=0.01SX¯=sN=75225=5df=N−1=225−1=224

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A:

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A: For the distribution of the given standardized exam score, it is given that:The mean, And the…

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A: Given that, n = 48∑fixi=1620∑fixi2=66400∑xi=180

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A: The provided information is  The mean and standard deviation is  µ=200 σ=40 P(X&lt;120)=?…

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A:

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A:

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A: Tax rate Freq(f) x xf x^2 x^2*f 0.00 - 0.49 7 0.245 1.715 0.060025 0.420175 0.5 - 0.99 12 0.745…

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A: Given data mean=69.0 inches standard deviation=2.8 inches x=79.7 inches

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A: Given The data is as follows:

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A: given data  ∑x = 61.2∑x2 = 444.6n = 16cv% = ?

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A: Given that IQ scores of adults is normally distributed with mean 100 and standard deviation 15. The…

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A:

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A:

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A: a)Correct selection is Option ● Bb) the correct selection is Option  ● C.

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A:

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A: Solution: Let X be the random variable. From the given information, X follows normal distribution…

Q: The mean is 146 and the standard deviation is 35. A score of 41 is how many z-scores below the mean?

A:

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A: For an assumed sample, the z-score Z=x¯-μσnwhere, x¯=sample mean             μ=population mean…

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A: Let  be the population variance.Given that,Population variance Sample size Sample variance Assume…

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