A manufacturer of apple phone charges claims that only 4% of his produsction is defective. In a random sample of 120 items, the defect rate is 4.99%. At the 1%level of significance, test the manger's claim. i. State the null and alternative hypothese for the test. ii. Calculate the value of the test statistic for this test. iii. Determine the critical region(s) for this test. iv. State the conclusion of this test. give a reason for you answer

Q: The claim is that smokers have a mean cotinine level greater than the level of 2.84 ng/mL found for…

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Q: You wish to test the following claim at a significance level of a=0.001. H0:P=0.64…

A: According to the given information in this question We need to find the conclusion of the test

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 39 orders that were…

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Q: P4. A random sample of 150 recent donations at a certain blood bank reveals that 82 were type A…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: A newspaper published an article about a study in which researchers subjected laboratory gloves to…

A: there are values of sample  proportions and sample sizes For both samples given in question.\ we…

Q: n a study of the accuracy of fast food​ drive-through orders, one restaurant had 36 orders that were…

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Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 31 orders that were…

A: For this study we should use:Z-test. This is because we are dealing with proportions where z-test is…

Q: The accompanying table lists body temperatures (in F) obtained from randomly selected subjects.…

A: State the hypotheses   Let Factor A denotes the Gender. Let Factor B denotes the smoking.   Test for…

Q: he percentage breakdown of the contributions received by a national public television network is…

A: Null Hypothesis:   H0: The distribution of contributions not differ significantly from that…

Q: A professional racing team is holding tryouts at its test track. The team requires its drivers to…

A: Given,Test statistic(z)=2.02H0:μ>133H1:μ≤133P-value=P(Z<2.02)=0.9783α=0.05

Q: In a random sample of males, it was found that 18 write with their left hands and 215 do not. In a…

A: Given Let sample 1 be of males and sample 2 be of females. No. of females who write with left hands,…

Q: In a study of the accuracy of fast food​ drive-through orders, one restaurant had 31 orders that…

A: Given : Let X : No. of inaccurate orders  Sample size (n) = 399 X = 31 α = 0.01

Q: You wish to test the following claim (Ha) at a significance level of a 0.05. H.: P1 – P2 = 0 Ha:P1 -…

A: Solution: State the hypotheses. Null hypothesis: H0: pl–p2=0 Alternative hypothesis: Ha: pl–p2<0…

Q: Randomly selected birth records were obtained, and categorized as listed in the table to the right.…

A: Solution: Given information: n=45+56+60+55+60+56+45=377  Total birth  k= 7 categories

Q: The claim is that smokers have a mean cotinine level greater than the level of 2.84 ng/mL found for…

A: Step 1:Here is a given claim :"The smoker have mean cotinine level greater than the level 2.84…

Q: he claim is that smokers have a mean cotinine level greater than the level of 2.84 ng / mL found for…

A: Given that  Sample size n =918 Population mean =2.84 Test statistic t =56.582

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 30 orders that were…

A: Given ,claim: The rate of inaccurate orders is equal to 10%

Q: A Patent Medicine Company supervisor assumes that the bottling machine is operating properly if less…

A: 1) The test hypotheses are given below, Denote p as the proportion of processed bottles are not…

Q: You wish to test the following claim (Ha) at a significance level of a = 0.10. Ho: p=0.6 Ha: p=0.6…

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Q: The claim is that smokers have a mean cotinine level greater than the level of 2.84 ng/ mL found for…

A: Given,sample size(n)=738population mean(μ)=2.84Test statistic(t)=54.846α=0.10 degrees of…

Q: The claim is that smokers have a mean cotinine level greater than the level of 2.84 ng/mL found for…

A: 1. Identify the null and alternative hypotheses. Remember that the null hypothesis (H0) expresses…

Q: What is the test statistic for this sample? (Report answer accurate to three decimal places.) test…

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Q: The claim is that smokers have a mean cotinine level greater than the level of 2.84 ng/mL found for…

A:

Q: Jennifer, a golfer, has a sample driving distance mean of 244.0 yards from 16 drives. Jennifer still…

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Q: Decide whether the following scenarios are example of type 1 error or type 2 error or neither?  Use…

A: Identify the correct option to determine which type of error occurs. The correct option is…

Q: Assume that the significance level is a = 0.01. Use the given statement allu 1 %3D The test…

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Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 38 orders that were…

A: In this case, the claim to be tested is whether the rate of inaccurate orders is equal to 10% or the…

Q: You wish to test the following daim (Ha) at a significance level of a = 0.01. H.:P1 = P2 Ha:P1 + P2…

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Q: An article reports that men over 6 feet tall earn more than men under 6 feet, with these numbers:…

A: From the provided information, The hypotheses for this test can be constructed as: H0: µ1 = µ2 H1:…

Q: A janitor at a large office building believes that his supply of light bulbs has a defect rate that…

A: The level of significance is the fixed probability of false elimination of the true null hypothesis…

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 32 orders that were…

A: Solution : Given : P = 0.1             x =32             n = 360             α = 0.01 ∴Sample…

Q: three populations. The data obtained are shown below. Please note that the sample sizes are not…

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Q: A recent random sample of 1325 women drivers revealed that 140 of them never speed. We want to test…

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Q: n a study of the accuracy of fast food drive-through orders, one restaurant had 30 orders that were…

A: One restaurant had 30 orders that were not accurate among 355 orders observed; n=355 x=30 The rate…

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 40 orders that were…

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Q: Consider a drug that is used to help prevent blood clots in certain patients. In clinical trials,…

A: From the provided information, Sample size (n) = 6103 Out of which 151 developed the adverse…

Q: An aneroid sphygmomanometer is a mechanical device used to measure blood pressure. A simple random…

A: From the given information, the following values are known: Sample size, n=11 Using EXCEL function:…

Q: What is the critical value for this test? (Report answer accurate to three decimal places.) critical…

A: Given: Level of significance = 0.02 H0: p = 0.78 H1 : p >0.78 n = 654 x = 533  Sample proportion…

Q: In a study of the accuracy of fast food​ drive-through orders, one restaurant had 34 orders that…

A: In a study of the accuracy of fast food​ drive-through orders, one restaurant had 34 orders that…

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 38 orders that were…

A:

Q: The claim is that smokers have a mean cotinine level greater than the level of 2.84 ng/mL found for…

A: Step 1:Claim: The mean cotinine level is greater than the level of 2.84 ng/mL. From claim hypothesis…

Q: In a study of the accuracy of fast food​ drive-through orders, one restaurant had 30 orders that…

A: The null and alternative hypotheses for this test is: C. H0​: p=0.1 H1​: p≠0.1 The test statistic…

Q: What are we testing in this problem? O single mean O single proportion (a) What is the level of…

A: The test is about single mean. Thus, we are testing single mean in this problem.

Q: The claim is that smokers have a mean cotinine level greater than the level of 2.84 ng/mL found for…

A: Step 1:Given data : Sample size n=761degrees of freedom df=n−1=761−1=760Significance level α=0.10…