Each of the following pairs of null and alternative hypothesis has some error. Identify the error...

Each of the following pairs of null and alternative hypothesis has some error. Identify the error and explain how to fix it.

H₀: The average ‘freshness’ of an edible food arrangement is at least 3 hours

H₁: The average ‘freshness’ of an edible food arrangement is not 3 hours

H₀: The average ‘freshness’ of an edible food arrangement is more than 3 hours

H₁: The average ‘freshness’ of an edible food arrangement is less than 3 hours

H₀: The average number of faulty watches per 1,000 watches is less than 4

H₁: The average number of faulty watches per 1,000 watches is at least 4

H₀: The average number of faulty watches per 1,000 watches is 4

H₁: The average number of faulty watches per 1,000 watches is more than 4

Solutions

Expert Solution

H₀: The average ‘freshness’ of an edible food arrangement is at least 3 hours

H₁: The average ‘freshness’ of an edible food arrangement is less than 3 hours

H₀: The average ‘freshness’ of an edible food arrangement is at least 3 hours

H₁: The average ‘freshness’ of an edible food arrangement is less than 3 hours

H₀: The average number of faulty watches per 1,000 watches is at least 4

H₁: The average number of faulty watches per 1,000 watches is less than 4

H₀: The average number of faulty watches per 1,000 watches is 4

H₁: The average number of faulty watches per 1,000 watches is not equal to 4

Explanation:

Always keep in mind that the null hypothesis H₀ contains ‘=’(equal to), ‘≤’(less than or equal to), or ‘≥’(greater than or equal to) only. Null hypothesis always contain ‘equal to’ in the statement. Alternative hypothesis only contain three types of inequalities such ‘<’ (less than), ‘>’(greater than), or ‘≠’(not equal to). So, according to this, above statements were changed.

orchestra answered 1 year ago

Next > < Previous

Related Solutions

For each of the following studies, write a null hypothesis (Ho) and an alternative hypothesis (Ha)....

For each of the following studies, write a null hypothesis (Ho) and an alternative hypothesis (Ha). For each part, also indicate whether you have written a one-tailed or two-tailed alternative hypothesis. a. An organizational psychologist examined whether an office redesign would change employees’ satisfaction levels. b. A forensic cognitive psychologist wondered whether repetition of false information would increase the tendency to develop false memories on average. c. A clinical psychologist studied whether structured assessments of therapy would lead to a...

Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final...

Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses both the claim and the significance level alpha. Use the P-value method. A sample of 17 jellybeans with a mean weight of 0.8295 g was taken. Assume that σ is known to be 0.0565 g. Consider a hypothesis test that uses a 0.05 significance level to test the claim that the mean weight of all jellybeans is equal to 0.8550 g...

Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final...

Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Various temperature measurements are recorded at different times for a particular city. The mean of 20°C is obtained for 60 temperatures on 60 different days. Assuming that test the claim that the population mean is 22°C . Use a 0.05 significance level. Testing Hypothesis Z-Table

Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final...

Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. a) A poll of 1068 adult Americans reveals that 48% of the voters surveyed prefer the Democratic candidate for the presidency. At the 0.05 level of significance, test the claim that at least half of all voters prefer the Democrat. b) In a sample of 167 children selected randomly from one town, it is found that 37 of...

Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final...

Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method. Use the given data set of x and y values to answer the following questions. x-values 1 1 1 2 2 2 3 3 3 9 y-values 8 9 10 8 9 10 8 9 10 2 (a) Use StatCrunch to find the regression equation, ˆy = b0 + b1x and the sample correlation...

Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final...

Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method. Listed below are ages of actresses and actors from a country at the times that they won a certain award. The data are paired according to the years that they won. Use a 0.01 significance level to test the belief that best actresses are younger than best actors. Does the result suggest a problem...

For the following scenarios write an appropriate null and alternative hypothesis and identify what type of...

For the following scenarios write an appropriate null and alternative hypothesis and identify what type of test statistic will be used. (Steps 1 & 3 of the six step hypothesis test.) a. A nationwide sample of influential Republicans and Democrats was asked as part of a comprehensive survey whether they favored lowering environmental standards so that high-sulfur coal could be burned in coal-fired plants. The results were: Republicans Democrats No. Sampled 1100 1400 No. in Favor 115 158 At the...

Using the information posted in the table, what is the null hypothesis and alternative hypothesis? Identify...

Using the information posted in the table, what is the null hypothesis and alternative hypothesis? Identify the test statistic and p-value from your source data. Would you reject or fail to reject your null hypothesis? Explain how you came to this conclusion (i.e. either use the test-statistic or p-value to support your claim). Would there be sufficient evidence (based upon your source data) to support the claim that those treated with magnets have a greater mean reduction in pain than...

State the null and alternative hypotheses for each of the following situations. (That is, identify the...

State the null and alternative hypotheses for each of the following situations. (That is, identify the correct number μ0 and write H0:μ=μ0 and the appropriate analogous expression for Ha.) A. The average July temperature in a region historically has been 74.5°F. Perhaps it is higher now. B. The average weight of a female airline passenger with luggage was 145 pounds ten years ago. The FAA believes it to be higher now. C. The average stipend for doctoral students in a particular discipline at...

What is a null hypothesis? Wat is an alternative hypothesis? Then articulate a null hypothesis and...

What is a null hypothesis? Wat is an alternative hypothesis? Then articulate a null hypothesis and alternative hypothesis for a research study that pertains to you're area of specialization. What conclusions can be drawn from this study with a "statistically significant" result?

Subjects