What is the alternative hypothesis of this test? Calculate the difference between the sample mean in the hypothesized mean. According to the P value, what is the mean difference statistically significant? Based on the results, can you reject the null hypothesis? Should you order maintenance repair

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Please answer: What is the alternative hypothesis of this test? Calculate the difference between the sample mean in the hypothesized mean. According to the P value, what is the mean difference statistically significant? Based on the results, can you reject the null hypothesis? Should you order maintenance repair? 
Case 1: Machine Maintenance
t-Test: One-Sample
Mean (weight)
Variance
A cereal company wants to make sure the machine used to fill boxes of cereal is working
18.4
properly. The machine is supposed to fill each box with 18 ounces of cereal. To test the
machine's accuracy, you sampled the weight of 40 boxes of cereal. To determine if the
machine needs maintenance, you conduct a one-sample t-test (see results in K2:M7). If the
average weight statistically differs from 18 ounces, you will order a maintenance repair. But
because the repair can be costly and because there are potential punitive costs for not
selling food products at the advertised weight, you want to
0.9
Observations
40
t-statistic
2.67
P(t=T) two-tail
0.011
95% confident in the results.
Questions
#3
What is the sample size?
According to the case, what should be the Hypothesized Mean (M)? Enter a numeric value.
40
2
18
What is the null hypothesis (Ho) of this test?
HO: µ = 18 (weight equal to 18)
4
What is the alternative hypothesis (H,) of this test?
[select]
5
Calculate the difference between the Sample Mean and the Hypothesized Mean? (X - M)
16
What value is the Degrees of Freedom?
39
Given the desired confidence level, what alpha should be used?
17
18
19
a = 0.05
What is the p-value equal to for this this test?
According to thep-value, is the mean difference statistically significant?
Based on the results, can you reject the null hypothesis (Ho)?
8
p=0.011
9.
[select]
20
10
[select]
21
11
Should you order maintenance repair?
[select]
22
Transcribed Image Text:Case 1: Machine Maintenance t-Test: One-Sample Mean (weight) Variance A cereal company wants to make sure the machine used to fill boxes of cereal is working 18.4 properly. The machine is supposed to fill each box with 18 ounces of cereal. To test the machine's accuracy, you sampled the weight of 40 boxes of cereal. To determine if the machine needs maintenance, you conduct a one-sample t-test (see results in K2:M7). If the average weight statistically differs from 18 ounces, you will order a maintenance repair. But because the repair can be costly and because there are potential punitive costs for not selling food products at the advertised weight, you want to 0.9 Observations 40 t-statistic 2.67 P(t=T) two-tail 0.011 95% confident in the results. Questions #3 What is the sample size? According to the case, what should be the Hypothesized Mean (M)? Enter a numeric value. 40 2 18 What is the null hypothesis (Ho) of this test? HO: µ = 18 (weight equal to 18) 4 What is the alternative hypothesis (H,) of this test? [select] 5 Calculate the difference between the Sample Mean and the Hypothesized Mean? (X - M) 16 What value is the Degrees of Freedom? 39 Given the desired confidence level, what alpha should be used? 17 18 19 a = 0.05 What is the p-value equal to for this this test? According to thep-value, is the mean difference statistically significant? Based on the results, can you reject the null hypothesis (Ho)? 8 p=0.011 9. [select] 20 10 [select] 21 11 Should you order maintenance repair? [select] 22
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