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3 years ago

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Mrs. Decker walks for 30 minutes each day as often as possible. What is an equation that relates the number of days d that Mrs.

Decker walks and the number of minutes m that she spends walking?

1 answer:

Triss [41]3 years ago

5 0

Since she spends 30 minutes/day walking, the total number of minutes can be represented by 30 minutes for each day or 30*amount of days=30*d

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professor190 [17]

Answer:

$\chi^2 =\frac{15-1}{25} 16 =8.96$

The degrees of freedom are given by:

$df = n-1 = 15-1=14$

The p value for this case would be given by:

$p_v =P(\chi^2$

Since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is not ignificantly lower than 5 minutes

Step-by-step explanation:

Information given

$n=15$ represent the sample size

$\alpha=0.05$ represent the confidence level

$s^2 =16$ represent the sample variance

$\sigma^2_0 =25$ represent the value that we want to verify

System of hypothesis

We want to test if the true deviation for this case is lesss than 5minutes, so the system of hypothesis would be:

Null Hypothesis: $\sigma^2 \geq 25$

Alternative hypothesis: $\sigma^2$

The statistic is given by:

$\chi^2 =\frac{n-1}{\sigma^2_0} s^2$

And replacing we got:

$\chi^2 =\frac{15-1}{25} 16 =8.96$

The degrees of freedom are given by:

$df = n-1 = 15-1=14$

The p value for this case would be given by:

$p_v =P(\chi^2$

Since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is not ignificantly lower than 5 minutes

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3 years ago

Diego lives 1/2 mile from school. Jonah lives 5% as far from school as Diego. How far, in miles, does diego live from school?

Elden [556K]

Answer:

The answer is .25

Step-by-step explanation:

convert 1/2 to .5 the multiply .5 by .5 which gives you .25

hope this helps

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weeeeeb [17]

Answer:

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Step-by-step explanation:

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qaws [65]

Answer:

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Step-by-step explanation:

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They both type 1 page every six minutes.

Lisa types 6 pages every 36 minutes, and if we divide the minutes by the pages, we get

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sleet_krkn [62]

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