My Account Periodic Table - Pta... Working. Welcome, ALI - Blac.. Netflix Netflix Royal Commission \( \mathbf{f} \). YouTube Question Completion Status: 2 b Moving to another question will save this response. Question 2 of 3 Question 2 6 points Fece kor wie The average 1-year-old (both genders) is 29.15 inches tall. A random sample of 301 -year-olds in a large day care franchise resulted in the foltowing heights. If the \( C V \) is \( \pm 1.5 \), can it be concluded that the average height differs from 29 inches? Assume \( \sigma=2.21 \). \[ \begin{array}{l} \begin{array}{lllllllllllllll} 25 & 32 & 35 & 25 & 30 & 26.5 & 26 & 25.5 & 29.5 & 32 & 30 & 28.5 & 30 & 31 & 28 \end{array} \\ \begin{array}{lllllllllllllll} 31.5 & 29 & 29.5 & 30 & 33 & 29 & 32 & 27.5 & 28 & 32 & 28 & 27 & 31 & 29 & 29.5 \end{array} \\ \bar{x}=\text { sample mean }=29 \\ \end{array} \] \[ \begin{array}{l} \text { Ho }: \mu=29.15 \\ H 1: \mu \neq 29.15 \end{array} \] The test value \( \mathrm{z}= \)
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- Null hypothesis (H0): The true mean height of 1-year-olds is 29.15 inches, i.e., \( \mu = 29.15 \). - Alternative hypothesis (H1): The true mean height of 1-year-olds is not 29.15 inches, i.e., \( \mu \neq 29.15 \). Show more…
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The average 1-year-old (both genders) is 29 inches tall. A random sample of 30 1-year-olds in a large day care franchise resulted in the following heights. At $\alpha=0.05,$ can it be concluded that the average height differs from 29 inches? Assume $\sigma=2.61$. $$ \begin{array}{llllllllll} 25 & 32 & 35 & 25 & 30 & 26.5 & 26 & 25.5 & 29.5 & 32 \\ 30 & 28.5 & 30 & 32 & 28 & 31.5 & 29 & 29.5 & 30 & 34 \\ 29 & 32 & 27 & 28 & 33 & 28 & 27 & 32 & 29 & 29.5 \end{array} $$
Hypothesis Testing
z Test for a Mean
Questions #1-#3 are based on the following sample of ages (in months) of 18 children at a day care: 36, 42, 18, 32, 22, 22, 25, 29, 30, 31, 19, 24, 35, 29, 26, 36, 24, 28 The median age of the children is... a) 29 b) 28.2 c) 30.5 d) 28.5 e) 31 This data set is a: approximately symmetric b, skewed to the right c, skewed to the left The variance in the age of children is... a) 41.24 b) 11.33 c) 10.20 d) 41.22 e) 38.94
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