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Bess [88]
2 years ago
11

The temperature control unit on a commercial freezer in a 24-hour grocery store is set to maintain a mean temperature of 23 degr

ees Fahrenheit. The temperature varies because people are constantly opening the freezer door to remove items, but the thermostat is capable of maintaining a temperature with a standard deviation of 2 degrees Fahrenheit. The desired range is 18 to 30 degrees Fahrenheit. Find the Cpk capability indexes
Mathematics
1 answer:
Yakvenalex [24]2 years ago
3 0

The capability index of the freezer control unit is 0.83.

<h3>How to find capability index</h3>

The capability index is given by:

C_{pk}=\frac{Z_{min}}{3} \\\\Z_{upper}=\frac{USL-Mean}{Standard\ deviation} \\\\Z_{lower}=\frac{Mean-LSL}{Standard\ deviation} \\\\From\ the\ question,mean=23,USL=30,LSL=18,deviation=2, hence:\\\\Z_{upper}=\frac{30-23}{2}=3.5 \\\\Z_{lower}=\frac{23-18}{2}=2.5 \\\\Z_{min}=2.5\\\\Hence:\\\\C_{pk}=\frac{2.5}{3} =0.83

The capability index of the freezer control unit is 0.83.

Find out more on capability index at: brainly.com/question/25109150

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Liono4ka [1.6K]

Answer:

x = \frac{-9}{8} , \frac{-10}{7} , \frac{10}{7}

Step-by-step explanation:

8x+9=0

8x=-9

x = \frac{-9}{8}

or

49x^{2}-100 = 0

(7x)^{2} -10^{2} =0,

(7x+10)(7x-10)=0

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7x=-10, 7x=10

x=-\frac{-10}{7}, x = \frac{10}{7}

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PLEASE ASSIST!! EXTRA POINTS PLUS BRAINLIEST ANSWER I’LL TRADE YOU MY MOM SHE MAKES RLLY GOOD COOKIES! Find the slope of the giv
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12^2 + 21^2 = C^2

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8 0
3 years ago
Which is a better estimate for the weight of a dresser?<br> 45 grams or 45 kilograms
STatiana [176]
45 grams is about 1/4 cup of water or maybe 1/4 cup of flour or uncooked rice would be 45 grams. Anyway it's not much.

Unless the dresser is made of paper, 45 grams is not enough. 45 kg though large (that's roughly 100 pounds if that's what you think in), the dresser might be found in the apartment where Sherlock Holmes lives. (The dresser is a piece of victorian furniture) it is much closer to what a modern dresser would weigh.
5 0
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Suppose a researcher is testing the hypothesis Upper H 0​: pequals0.4 versus Upper H 1​: pless than0.4 and she finds the​ P-valu
andre [41]

Answer:

D. If the​ P-value for a particular test statistic is 0.33​, she expects results at least as extreme as the test statistic in exactly 33 of 100 samples if the null hypothesis is true.

D. Since this event is not​ unusual, she will not reject the null hypothesis.

Step-by-step explanation:

Hello!

You have the following hypothesis:

H₀: ρ = 0.4

H₁: ρ < 0.4

Calculated p-value: 0.33

Remember: The p-value is defined as the probability corresponding to the calculated statistic if possible under the null hypothesis (i.e. the probability of obtaining a value as extreme as the value of the statistic under the null hypothesis).

In this case, you have a 33% chance of getting a value as extreme as the statistic value if the null hypothesis is true. In other words, you would expect results as extreme as the calculated statistic in 33 about 100 samples if the null hypothesis is true.

You didn't exactly specify a level of significance for the test, so, I'll use the most common one to make a decision: α: 0.05

Remember:

If p-value ≤ α, then you reject the null hypothesis.

If p-value > α, then you do not reject the null hypothesis.

Since 0.33 > 0.05 then I'll support the null hypothesis.

I hope it helps!

3 0
3 years ago
What is -10 degrees Celsius equal to in Fahrenheit
hjlf

the formula is f=(c*20)+30  so 14 degrees farhenhight

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