# Project #71551 - 11 Math questions

 This is a 11 math questions, please take the time to look at it  I just need the Answers , make sure put, the answers next to it  like A 1.2 B 06 ect do not need work out the problems ALSO I NEED THIS 23HRS AFTER I POST IT THATS 9AM  FLORIDA TIME, JUST SEARCH FLORIDA TIME AND I NEED  BY TOMMOROW 9AM. please contact me if you bid, so I can Verify your willing to do it, Thanks      Questi   on 1 2.5 Points

In the past, the mean running time for a certain type of flashlight battery has been 9.8 hours. The manufacturer has introduced a change in the production method and wants to perform a hypothesis test to determine whether the mean running time has increased as a result. The hypotheses are:

H0 : µ  = 9.8 hours

Ha : µ  > 9.8 hours

Suppose that the results of the sampling lead to rejection of the null hypothesis. Classify that conclusion as a Type I error, a Type II error, or a correct decision, if in fact the mean running time has not increased.

 A. Type I error B. Type II error C. Correct decision D. Can not be determined from this information

 Question 2 2.5 Points

A consumer advocacy group claims that the mean amount of juice in a 16 ounce bottled drink is not 16 ounces, as stated by the bottler. Determine the conclusion of the hypothesis test assuming that the results of the sampling lead to rejection of the null hypothesis.

A. Conclusion: Support the claim that the mean is equal to 16 ounces.

B. Conclusion: Support the claim that the mean is greater than 16 ounces.

C. Conclusion: Support the claim that the mean is not equal to 16 ounces.

D. Conclusion: Support the claim that the mean is less than 16 ounces.

 Question 3 2.5 Points

z = 1.8 for Ha:  µ >  claimed value. What is the P-value for the test?

 A. 0.9641 B. 3.59 C. 96.41 D. 0.0359

 Question 4 2.5 Points

If a fan purchased a bag with 30 peanuts, what is the lowest level at which this would be a significant event?

 A. 0.05 B. 0.025 C. 0.01 D. It is not significant at any of the levels given

 Question 5 2.5 Points

A supplier of DVDs claims that no more than 1% of the DVDs are defective. In a random sample of 600 DVDs, it is found that 3% are defective, but the supplier claims that this is only a sample fluctuation. At the 0.01 level of significance, test the supplier’s claim that no more than 1% are defective.

 A. Do not reject the null hypothesis and conclude that there is evidence to support the claim that more than 1% of the DVDs are defective. B. Reject the null hypothesis and conclude that there is insufficient evidence to support the claim that more than 1% of the DVDs are defective. C. Do not reject the null hypothesis and conclude that there is insufficient evidence to support the claim that more than 1% of the DVDs are defective. D. Reject the null hypothesis and conclude that there is sufficient evidence to support the claim that more than 1% of the DVDs are defective.

 Question 6 2.5 Points

A two-tailed test is conducted at the 5% significance level. What is the left tail percentile required to reject the null hypothesis?

 A. 97.5% B. 5% C. 2.5% D. 95%

 Question 7 2.5 Points

One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent. The following counts were observed.

 Colorblind Not Colorblind Total Male 8 52 60 Female 2 38 40 Total 10 90 100

State the null and alternative hypothesis for the test associated with this data.

 A. H0: Colorblindness and gender are dependent characteristics. Ha: Colorblindness and gender are not related in any way. B. H0:  Colorblindness and gender are dependent characteristics. Ha:  Colorblindness and gender are related in some way. C. H0: Colorblindness and gender are independent characteristics. Ha: Colorblindness and gender are not related in any way. D. H0: Colorblindness and gender are independent characteristics. Ha: Colorblindness and gender are related in some way.

 Question 8 2.5 Points

One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent. The following counts were observed.

 Colorblind Not Colorblind Total Male 7 53 60 Female 1 39 40 Total 8 92 100

If gender and colorblindness are independent, find the expected values corresponding to the female combinations of gender and colorblindness.

A. Colorblind Female 4.8; Not Colorblind Female 55.2

B. Colorblind Female 3.2; Not Colorblind Female 36.8

C. Colorblind Female 4.8; Not Colorblind Female 35.2

D. Colorblind Female 3.8; Not Colorblind Female 36.2

 Question 9 2.5 Points

One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent. The following counts were observed.

 Colorblind Not Colorblind Total Male 7 53 60 Female 1 39 40 Total 8 92 100

Find the value of the X2 statistic for the data above.

 A. 1.325 B. 1.318 C. 1.286 D. 1.264

 Question 10 2.5 Points

One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent.

The critical value of X2 for a 2 x 2 table using a 0.05 significance level is 3.841. If the value of the X2 statistic is 3.427, state your conclusion about the relationship between gender and colorblindness.

 A. Do not reject H0. There is not sufficient evidence to support the claim that gender and colorblindness are related. B. Do not reject H0. There is sufficient evidence to support the claim that gender and colorblindness are related. C. Reject H0. There is not sufficient evidence to support the claim that gender and colorblindness are related. D. Reject H0. There is sufficient evidence to support the claim that gender and colorblindness are related.

 Question 35 of 40 2.5 Points

The __________ test statistic is for the one-way analysis of variance.

A. P-Value

B. t

C. F

D. p

 Question 11 2.5 Points

One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent. The following counts were observed.

 Colorblind Not Colorblind Total Male 7 53 60 Female 1 39 40 Total 8 92 100

If gender and colorblindness are independent, find the expected values corresponding to the male combinations of gender and colorblindness.

 A. Colorblind Male 4.8; Not Colorblind Male 55.2 B. Colorblind Male 6.8; Not Colorblind Male 53.2 C. Colorblind Male 4.8; Not Colorblind Male 55.4 D. Colorblind Male 4.8; Not Colorblind Male 56.2

 Subject Mathematics Due By (Pacific Time) 05/20/2015 09:00 am
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