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The manufacturer of an electrical fuse claims that the fuse's link will break with a 10%...
A manufacturer claims that the calling range (in feet) of its 900-MHz cordless telephone is greater...
A manufacturer claims that the calling range (in feet) of its 900-MHz cordless telephone is greater than that of its leading competitor. A sample of 18 phones from the manufacturer had a mean range of 1120 feet with a standard deviation of 20 feet. A sample of 13 similar phones from its competitor had a mean range of 1110 feet with a standard deviation of 25 feet. Do the results support the manufacturer's claim? Let u be the true mean...
331 A manufacturer claims that 10% of women using the "pill" suffer from side effects. The...
331 A manufacturer claims that 10% of women using the "pill" suffer from side effects. The Federal Drug Administration (FDA) believes that the manufacturer's claim is too low and decides to test the manufacturer's claim at α = 5 %. A random sample of 900 women who use the manufacturer's pill shows that 103 suffer side effects. The Sampling Distribution of the Proportion is:
A manufacturer claims that the mean lifetime of its lithium batteries is 1101 hours. A homeowner...
A manufacturer claims that the mean lifetime of its lithium batteries is 1101 hours. A homeowner selects 25 of these batteries and finds the mean lifetime to be 1081 hours with a standard deviation of 81 hours. Test the manufacturer's claim. Use a = 0.05. OA. p-value = 0.114 > 0.05; do not reject the Ho; there is enough evidence to support the claim. OB. p-value = 0.114 > 0.05; reject the Ho; there is not enough evidence to support...
A manufacturer claims that the mean lifetime of its lithium batteries is 1401 hours. A homeowner...
A manufacturer claims that the mean lifetime of its lithium batteries is 1401 hours. A homeowner selects 25 of these batteries and finds the mean lifetime to be 1380 hours with a standard deviation of 81 hours. Test the manufacturer's claim. Use a=0.01. p-value = 0.104 > 0.01; reject the Ho; there is not enough evidence to support the claim. ОА. p-value = 0.207 > 0.01; do not reject the Ho; there is enough evidence to support the claim. ОВ....
A soft-drink manufacturer claims that its 12-ounce cans do not contain, on average, more than 30...
A soft-drink manufacturer claims that its 12-ounce cans do not contain, on average, more than 30 calories. A random sample of 68 cans of this soft drink, which were checked for calories, contained a mean of 32 calories with a standard deviation of 3 calories. Does the sample information support the alternative hypothesis that the manufacturer's claim is false? Use a significance level of 5%. Find the range for the p-value for this test. What will your conclusion be using...
A manufacturer claims that the calling range (in feet) of its 900-MHz cordless telephone is greater...
A manufacturer claims that the calling range (in feet) of its 900-MHz cordless telephone is greater than that of its leading competitor. A sample of 12 phones from the manufacturer had a mean range of 1150 feet with a standard deviation of 27 feet. A sample of 77 similar phones from its competitor had a mean range of 1100 feet with a standard deviation of 23 feet. Do the results support the manufacturer's claim? Let μ1 be the true mean...
A manufacturer claims that 10% of women using the "pill" suffer from side effects. The Federal...
A manufacturer claims that 10% of women using the "pill" suffer from side effects. The Federal Drug Administration (FDA) believes that the manufacturer's claim is too low and decides to test the manufacturer's claim at α = 5 %. A random sample of 900 women who use the manufacturer's pill shows that 103 suffer side effects. The standard error for this test is ___
A manufacturer claims that the mean lifetime of its fluorescent bulbs is 1500 hours. A homeowner...
A manufacturer claims that the mean lifetime of its fluorescent bulbs is 1500 hours. A homeowner selects 40 bulbs and finds the mean lifetime to be 1480 hours with a population standard deviation of 80 hours. Test the manufacturer's claim. Use α = 0.05.
A manufacturer claims that the mean lifetime of its lithium batteries is less than 1095 hours....
A manufacturer claims that the mean lifetime of its lithium batteries is less than 1095 hours. A homeowner selects 27 of these batteries and finds the mean lifetime to be 1065 hours with a standard deviation of 76 hours. Test the manufacturer's claim. Use a = 0.02. P-value = 0.112 > 0.02; do not reject H0; There is not enough evidence support the claim that mean is less than 1500. ОА P-value = 0.025 0.02, do not reject HO, There...
SAMPLING DISTRIBUTION The manufacturer of a new compact car claims the miles per gallon (mpg) for...
SAMPLING DISTRIBUTION The manufacturer of a new compact car claims the miles per gallon (mpg) for gasoline consumption is normally distribution with u = 26.3 mpg and standard deviation 6 = 9.0 mpg. A consumer agency is looking to verify the manufacturer's claim. If a sample of 36 cars are tested, what is the probability that the mean mpg 7 is (a) less than 23 mpg? (b) more than 29 mpg? (b) between 23 and 29 mpg?
A manufacturer claims that the calling range (in feet) of its 900-MHz cordless telephone is greater than that of its leading competitor. A sample of 18 phones from the manufacturer had a mean range of 1120 feet with a standard deviation of 20 feet. A sample of 13 similar phones from its competitor had a mean range of 1110 feet with a standard deviation of 25 feet. Do the results support the manufacturer's claim? Let u be the true mean...
A manufacturer claims that the mean lifetime of its lithium batteries is 1101 hours. A homeowner selects 25 of these batteries and finds the mean lifetime to be 1081 hours with a standard deviation of 81 hours. Test the manufacturer's claim. Use a = 0.05. OA. p-value = 0.114 > 0.05; do not reject the Ho; there is enough evidence to support the claim. OB. p-value = 0.114 > 0.05; reject the Ho; there is not enough evidence to support...
A manufacturer claims that the mean lifetime of its lithium batteries is 1401 hours. A homeowner selects 25 of these batteries and finds the mean lifetime to be 1380 hours with a standard deviation of 81 hours. Test the manufacturer's claim. Use a=0.01. p-value = 0.104 > 0.01; reject the Ho; there is not enough evidence to support the claim. ОА. p-value = 0.207 > 0.01; do not reject the Ho; there is enough evidence to support the claim. ОВ....
A soft-drink manufacturer claims that its 12-ounce cans do not contain, on average, more than 30 calories. A random sample of 68 cans of this soft drink, which were checked for calories, contained a mean of 32 calories with a standard deviation of 3 calories. Does the sample information support the alternative hypothesis that the manufacturer's claim is false? Use a significance level of 5%. Find the range for the p-value for this test. What will your conclusion be using...
A manufacturer claims that the mean lifetime of its lithium batteries is less than 1095 hours. A homeowner selects 27 of these batteries and finds the mean lifetime to be 1065 hours with a standard deviation of 76 hours. Test the manufacturer's claim. Use a = 0.02. P-value = 0.112 > 0.02; do not reject H0; There is not enough evidence support the claim that mean is less than 1500. ОА P-value = 0.025 0.02, do not reject HO, There...
SAMPLING DISTRIBUTION The manufacturer of a new compact car claims the miles per gallon (mpg) for gasoline consumption is normally distribution with u = 26.3 mpg and standard deviation 6 = 9.0 mpg. A consumer agency is looking to verify the manufacturer's claim. If a sample of 36 cars are tested, what is the probability that the mean mpg 7 is (a) less than 23 mpg? (b) more than 29 mpg? (b) between 23 and 29 mpg?
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