![4. In a soft-drink facility A, a sample of 60 bottles gave the mean no. of defects as 15.96 and the sample variance as 0.2. Consider the following hypothesis: Ho : ? 16 Ha : ? 16 a) Test the hypothesis at 5% level. [3] b) Assuming a normal population and a sample of 20 bottles instead, test the same hypothesis at 5% level if mean and variance are same as before. [3] c) If in an another facility B, a sample of 40 bottles gave the mean no. of defects as 12.32 and the sample variance as 0.4, construct a 95% interval for ?-?2. [4]](http://img.homeworklib.com/questions/af0d9990-cbcf-11eb-b76d-111bd3074a42.png?x-oss-process=image/resize,w_560)
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4. In a soft-drink facility "A", a sample of 60 bottles gave the mean no. of...
Design specification for a soft drink filling machine is to fill bottles with 12 ounces of...
Design specification for a soft drink filling machine is to fill bottles with 12 ounces of soft drink. A random sample of 49 bottles filled by this machine was sampled and the contents measured. If this sample had a mean measurement of 11.9 ounces with a standard deviation of 0.28 ounces, is the machine really under-filling bottles? Test at a 5% significance level. H0: Ha: a: Test Statistic (show set up, not just an answer): Rejection decision and reasoning using...
The fill amount of bottles of a soft drink is normally distributed, with a mean of...
The fill amount of bottles of a soft drink is normally distributed, with a mean of 2.0 liters and a standard deviation of 0.06 liter. Suppose you select a random sample of 25 bottles a. What is the probability that the sample mean will be between 1.99 and 20 liters? b. What is the probability that the sample mean will be below 1.98 liters? c. What is the probability that the sample mean will be greater than 201 liters? d....
A facility for bottling soft drinks uses two fill and seal machines. For quality control purposes, data is collected on these machines to determine if they are filling the soft drinks with the same a...
A facility for bottling soft drinks uses two fill and seal machines. For quality control purposes, data is collected on these machines to determine if they are filling the soft drinks with the same amount of drink. Based on data from these two machines, they found that a 95% confidence interval for the difference in these machines, population means is (-2.5 mL, 0.3 mL). Using this data, the bottling facility would like to test if there is a difference in...
A new soft drink is being market tested. A sample of 400 individuals participated in the...
A new soft drink is being market tested. A sample of 400 individuals participated in the taste test and 80 indicated they like the taste. Conduct the following hypothesis test at 5% significance level. Null Hypothesis: At least 22% of the population will like the new soft drink. Alternative Hypothesis: Less than 22% of the population will like the new soft drink. Group of answer choices Reject the null None of these Accept the null Do not reject the null
A soft drink vending machine, when in perfect adjustment, fills bottles with 12 ounces of soft...
A soft drink vending machine, when in perfect adjustment, fills bottles with 12 ounces of soft drink. A random sample of 25 bottles is selected, and the contents are measured. The sample yielded a mean content of 11.88 ounces, with a sample standard deviation of 0.24 ounce. With a .05 level of significance, test to see if the machine is in perfect adjustment. Assume the distribution of the population is normal. Group of answer choices t = -2.5; therefore, reject...
The Crown Bottling Company has just installed a new bottling process that will fill 16-ounce bottles...
The Crown Bottling Company has just installed a new bottling process that will fill 16-ounce bottles of the popular Crown Classic Cola soft drink. Both overfilling and underfilling bottles are undesirable: Underfilling leads to customer complaints and overfilling costs the company considerable money. In order to verify that the filler is set up correctly, the company wishes to see whether the mean bottle fill, μ, is close to the target fill of 16 ounces. To this end, a random sample...
please solve and highlight answers yes At Ajax Spring Water a half-liter bottle of soft drink is supposed to contain a...
please solve and highlight answers
yes
At Ajax Spring Water a half-liter bottle of soft drink is supposed to contain a mean of 533 ml. The filling process follows a normal distribution with a known process standard deviation of 7 ml (a) The normal distribution should be used for the sample mean because (You may select more than one answer. Click the box with a check mark for the correct answer and click to empty the box for the wrong...
. (18 points) Many students have complained that the soft drink vending machine in the student...
. (18 points) Many students have complained that the soft drink vending machine in the student recreation room (A) dispenses a different amount of soda than the machine in the faculty lounge (B). To test this belief, a student randomly sampled several servings from each machine and carefully measured them, with the results shown in the following table: MachineT Sample Size Sample MeanSample Standard Deviation 2 6 10 Assume that the amounts dispensed by both machines are independent and r...
8.Construct a 95% confidence interval on the mean reaction pressure, when the hypothesis is Ho =...
8.Construct a 95% confidence interval on the mean reaction pressure, when the hypothesis is Ho = 225, Ha >225 if the sample mean is y = 241.5, sample variance S2 = 9747, the sample size n = 16 and α= 0.05?
A random sample has a mean of 16.5 and variance of 16, with n = 35...
A random sample has a mean of 16.5 and variance of 16, with n = 35 . The null hypothesis Ho : ? = 20 is to be tested against the alternative hypothesis Ha : ? ? 20 with 99% confidence level. What is the value of the test statistics ? Write your answer with 2 decimal places.
The fill amount of bottles of a soft drink is normally distributed, with a mean of 2.0 liters and a standard deviation of 0.06 liter. Suppose you select a random sample of 25 bottles a. What is the probability that the sample mean will be between 1.99 and 20 liters? b. What is the probability that the sample mean will be below 1.98 liters? c. What is the probability that the sample mean will be greater than 201 liters? d....
A facility for bottling soft drinks uses two fill and seal machines. For quality control purposes, data is collected on these machines to determine if they are filling the soft drinks with the same amount of drink. Based on data from these two machines, they found that a 95% confidence interval for the difference in these machines, population means is (-2.5 mL, 0.3 mL). Using this data, the bottling facility would like to test if there is a difference in...
please solve and highlight answers
yes
At Ajax Spring Water a half-liter bottle of soft drink is supposed to contain a mean of 533 ml. The filling process follows a normal distribution with a known process standard deviation of 7 ml (a) The normal distribution should be used for the sample mean because (You may select more than one answer. Click the box with a check mark for the correct answer and click to empty the box for the wrong...
. (18 points) Many students have complained that the soft drink vending machine in the student recreation room (A) dispenses a different amount of soda than the machine in the faculty lounge (B). To test this belief, a student randomly sampled several servings from each machine and carefully measured them, with the results shown in the following table: MachineT Sample Size Sample MeanSample Standard Deviation 2 6 10 Assume that the amounts dispensed by both machines are independent and r...
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